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Question
Multiply the following:
–3x2y, (5y – xy)
Sum
Solution
We have,
–3x2y and (5y – xy)
∴ –3x2y × (5y – xy) = –3x2y × 5y + 3x2y × xy
= –15x2y2 + 3x3y2
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Chapter 7: Algebraic Expression, Identities and Factorisation - Exercise [Page 230]
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