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Recent questions tagged algebraic-expression-and-identities
Questions
Simplify: $\bigg( \large\frac{2}{5}$$x^2 + \frac{7}{9}$$y^2 \bigg)^2-\bigg( \large\frac{2}{5}x^2-\frac{7}{9} $$y^2\bigg)^2$
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
Jun 1, 2015
by
meena.p
1
answer
If $ (x+y) =11$ and $xy =30$ . Find the value of $x^2+y^2$
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
Jun 1, 2015
by
meena.p
1
answer
Simplify: $2a^2 (3a^2-4)+4a(2a^2+3 )-12 (a-1)$
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
Jun 1, 2015
by
meena.p
1
answer
Multiply $4xyz- 2xy$ by $ \large\frac{-3}{5}$$xy$
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
Jun 1, 2015
by
meena.p
1
answer
Find the value of $6x^3 \times (-7x^2y^2) \times (1.1 xy)$ at $ y= 0.5,x=1$
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
Jun 1, 2015
by
meena.p
1
answer
Simplify : $2x^2-4x+5 -\large\frac{1}{3}$$(x^2-5x+7)$
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
Jun 1, 2015
by
meena.p
1
answer
Simplify : $( 1+\large\frac{1}{2}x +\frac{1}{\sqrt 2} x^2)$$+(5 -\large\frac{2}{3}x $$+\sqrt 2 x^2) -(4 - \large\frac{1}{3} x -$$ 2 \sqrt 2 x^2)$
class-olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
Jun 1, 2015
by
meena.p
1
answer
What must be added to $x^3+3x-8$ to get $3x^3+x^2+6$?
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
Jun 1, 2015
by
meena.p
1
answer
Find the value of $\large\frac{6.25 \times 6.25 -1.75 \times 1.75}{4.5}$
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
Jun 1, 2015
by
meena.p
1
answer
Subtract $b(b^2+b-7)+5$ from $3b^2 -8$ and find the value of expression obtained for $b=-3$
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
Jun 1, 2015
by
meena.p
1
answer
Find the value of a if $pqa=(3p+q)^2-(3p-q)^2$
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
Jun 1, 2015
by
meena.p
1
answer
Find the value of a if $8a=35^2 -27^2$
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 29, 2015
by
meena.p
1
answer
If $x-y =13$ and $xy=28$ then find $x^2+y^2$
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 29, 2015
by
meena.p
1
answer
If $a+b =25$ and $a^2+b^2=225$ , then find $ab$
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 29, 2015
by
meena.p
1
answer
The cost of a chocolate is $Rs. (x+y)$ and Rohit bought $(x+y)$ choclates . Find the total amount paid by him in terms of x. If $x=10$, find the amount paid by him
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 29, 2015
by
meena.p
1
answer
The height of a triangle is $ x^4 +y^4 $ and its base is $14 xy$ . Find the area of the triangle .
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 29, 2015
by
meena.p
1
answer
If $p+q =12$ and $pq= 22$ then find $p^2+q^2$
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 29, 2015
by
meena.p
1
answer
The area of a rectangle is $x^2+7x+12$. If the breadth is $(x+3)$ then find the length .
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 29, 2015
by
meena.p
1
answer
The area of a square is given by $4x^2+12xy+9y^2$. Find the side of the square.
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 29, 2015
by
meena.p
1
answer
$(pq-qr)^2+4pq^2r$
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 29, 2015
by
meena.p
1
answer
Simplify $(3x+2y)^2+(3x-2y)^2$
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 29, 2015
by
meena.p
1
answer
Square of $3x-4y$ is
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 29, 2015
by
meena.p
1
answer
Product of $6a^2 -7b +5ab $ and $2ab$ is
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 29, 2015
by
meena.p
1
answer
Volume of a rectangular box (cubord) with length $=2ab$, breadth = 3ac and height $=2ac$ is
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 29, 2015
by
meena.p
1
answer
Area of a rectangle with length $4ab$ and breadth $6b^2 $ is
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 29, 2015
by
meena.p
1
answer
Product of the following monomia is $4p,-7q^3 \times -7pq$ is
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 29, 2015
by
meena.p
1
answer
Sum of $a-b+ab,b+c-bc$ and $c-a-ac$ is
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 29, 2015
by
meena.p
1
answer
If we subtract $-3x^2y^2 $ from $x^2y^2$ then we get,
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 29, 2015
by
meena.p
1
answer
Evaluate $8x+7$ given that $x-3=10$
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 29, 2015
by
meena.p
1
answer
Evaluate $3x^3 -4y^4 $ for $x=-1; y=-2$
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 29, 2015
by
meena.p
1
answer
Find the value of $49x^2+36y^2+84xy$ when $x=3;y=6$
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 29, 2015
by
meena.p
1
answer
Expand $\bigg(\large\frac{x}{6}-\frac{y}{5}\bigg)^2$
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 29, 2015
by
meena.p
1
answer
Solve : $(\sqrt 3 x -2y)^2$
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 29, 2015
by
meena.p
1
answer
Solve : $(7x-4x^2+2x^3-5)$ by $(3x-2)$
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 29, 2015
by
meena.p
1
answer
What must be added to $y^2+5y-6$ to get $y^3-y^2+3y-2$
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 21, 2015
by
meena.p
1
answer
What must be added to $x^3+3x-8$ to get $3x^3+x^2+6$
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 21, 2015
by
meena.p
1
answer
Subtract $2x^3-x^2+4x-6 $ from $x^3+5x^2-4x$
olympiad
class8
math
ch-7
sec-b
algebraic-expression-and-identities
asked
May 21, 2015
by
meena.p
1
answer
Find the sum of $5+x-x^2-x^3, 3x -5+2x^2-x^3, x+5+2x^3-5x^2$
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 21, 2015
by
meena.p
1
answer
If $(a+b=11)$ and $a+b=30$, then find the value of $(a^2+b^2)$
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 21, 2015
by
meena.p
1
answer
If $(x+2),(x^2+4) $ are length and breadth of a rectangle respectively, the are will be
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 21, 2015
by
meena.p
1
answer
The product obtained on multiplying $x^3+3x^2-5x$ by $(x-1)$ is a
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 21, 2015
by
meena.p
1
answer
If $x- \large\frac{1}{x}$$=9$, find the value of $x^2+\large\frac{1}{x^2}$
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 21, 2015
by
meena.p
1
answer
Simplify $a(b-c) -b(c-a) -c(a-b)$
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 21, 2015
by
meena.p
1
answer
Find the value of $(5a^6) \times (-10 ab^2)\times (-2.1a^2b^3)$ for $a=1$ and $b=\large\frac{1}{2}$
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 21, 2015
by
meena.p
1
answer
Find the value of expression $(81x^2+16y^2-72xy)$ when $x =\large\frac{2}{3}$ and $y=\large\frac{3}{4}$
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 21, 2015
by
meena.p
1
answer
Multiply $(a+b)$ and $(2a-3b+c)$
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 21, 2015
by
meena.p
1
answer
Find the area of rectangle with $(2x^2,5y^2)^2$ as apart of monomials as their length breadth respectively.
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 21, 2015
by
meena.p
1
answer
Find the product
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 20, 2015
by
meena.p
1
answer
Multiply $(7xy+5y) \times 3xy$
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 20, 2015
by
meena.p
1
answer
Add $5x^2 +3x-8 $ and $4x^2-5x+6$
olympiad
class8
math
ch-7
algebraic-expression-and-identities
asked
May 20, 2015
by
meena.p
1
answer
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