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Question
Multiply the following:
7pqr, (p – q + r)
Sum
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Solution
We have,
7pqr and (p – q + r)
∴ 7pqr × (p – q + r) = 7pqr × p – 7pqr × q + 7pqr × r
= 7p2qr – 7pq2r + 7pqr2
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Chapter 7: Algebraic Expression, Identities and Factorisation - Exercise [Page 230]
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