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7. Factorisation
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Q14 of 137 Page 100

Factories:

16p3 – 4p

We have,


16p3 – 4p


= 4p(4p2 – 1)


By using the formula a2 – b2 = (a + b)(a – b)


We get,


16p3 – 4p = 4p(4p2 – 1)


= 4p{(2p)2 – (1)2}


= 4p(2p + 1)(2p – 1)


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Questions · 137
7. Factorisation
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