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Question

If x=b2+ab+b2abb2+abb2ab then find the value of ax22bx

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Solution

Solution:- given
x=b2+ab+b2ab(b2+abb2ab)

=(b2+ab+b2ab)(b2+abb2ab)×(b2+ab+b2ab)(b2+ab+b2ab)

=(b2+ab+b2ab)2(b2+abb2ab)2=b2+ab+b2ab+2(b2+ab)(b2ab)b2+abb2+ab

=2b2+2b4a2b22ab=2b2+2bb2a22ab

=b+b2a2a

x2=b2+(b2a2)2+2bb2a2a2=2b2a2+2bb2a2a2

Now, ax22bx

=2b2a2+2bb2a2a2×a2b×b+b2a2a

2b2a2+2bb2a22b22bb2a2a

a2a=a(Ans)

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