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Question

Divide x4y4 by x2y2.

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Solution

Given (x4y4)÷(x2y2)
Since, we have a2b2=(ab)(a+b) .......(i)
Substitute a=x2 and b=y2 in equation(i), we get
(x2)2(y2)2=(x2y2)(x2+y2)
(x4y4)=(x2y2)(x2+y2) ......(ii)
Now substitute equation(ii) in given expression.
(x4y4)(x2y2)=(x2y2)(x2+y2)(x2y2)
=x2+y2
Hence, the value of the given expression is =x2+y2


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