Q. 2 D4.6( 8 Votes )

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Answer :

In given expression


Both terms are perfect square


64x2 = 8x × 8x


81 = 9 × 9


81-64x2 Seems to be in identity a2-b2 = (a + b)(a-b)


Where a = 9 and b = 8x;


81-64x2 = (9-8x)(9 + 8x)


Hence the factors of 81-64x2are(9-8x) and (9 + 8x)


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