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Questions  >>  Olympiad-Math  >>  Class 9  >>  Polynomials
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Q)

The expansion of (x + y - z)2 is


( A ) x2 + y2 - z2 - 2xy + yz + 2zx
( B ) x2 + y2 + z2 + 2xy - 2yz - 2zx
( C ) x2 + y2 - z2 + 2zy - 2yz - 2zx
( D ) x2 + y2 + z2 + 2xy + 2yz + 2zx

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A)
(C)x2+y2-z2+2zy-2yz-2zx
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