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Olympiad-Math
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Class 7
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Algebraic Expressions
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Q)
if P= -6b^2 + b + 8, Q=3b^2 - 3b + 9 and R=7b^2 - 8b + 3, find (P-Q+R)
( A ) -2b^2 - 4b - 2
( B ) -2b^2 - 4b + 2
( C ) -2b^2 + 4b + 2
( D ) 2b^2 - 4b + 2
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