Q. 113.9( 15 Votes )

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Answer :

We have,


x3 – 64x


= x(x2 – 64)


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


We get,


x3 – 64x = x(x2 – 64)


= x{(x)2 – (8)2}


= x(x + 8)(x – 8)


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