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प्रश्न
Expand the following:
(m + 8) (m - 7)
बेरीज
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उत्तर
(m + 8) (m - 7)
= m2 + 8m - 7m - 56
= m2 + m - 56
(Using identify : (x+ a) (x - b)
= x2 + (a - b) x - ab).
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