Q4 Solve using identity:(9p+ 4)(9p – 7)
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Answer:
Step-by-step explanation:
= (9p + 4)(9p - 7)
= 9p(9p - 7) + 4(9p - 7)
= 81p^2 - 63p + 36p - 28
= 81p^2 - 27p -28
Hope it helps you.
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