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Question

The perimeter of a rectangle 8a210ab+6b2 and one of its side 6a215ab+2b2. Find its other adjacent side.

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Solution

Given the perimeter of a rectangle 8a210ab+6b2 and one of its side 6a215ab+2b2.

Let the other adjacent side be x.

Then we've,

Perimeter =2(l+b)

2(x+6a215ab+2b2)=8a210ab+6b2

or,(x+6a215ab+2b2)=4a25ab+3b2

or, x=2a2+10ab+b2.

So the other side will be b2+10ab2a2.

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