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प्रश्न
Multiply the following:
7pqr, (p – q + r)
बेरीज
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उत्तर
We have,
7pqr and (p – q + r)
∴ 7pqr × (p – q + r) = 7pqr × p – 7pqr × q + 7pqr × r
= 7p2qr – 7pq2r + 7pqr2
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पाठ 7: Algebraic Expression, Identities and Factorisation - Exercise [पृष्ठ २३०]
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