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Question

Solve the following system of equations.

(a−b)x+(a+b)y=a2−2ab−b2, (a+b)(x+y)=a2+b2.

A
ab,2ab
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B
a+b,2ab
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C
a2+b2,2aba+b
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D
a+b,2aba+b
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Solution

The correct option is D a+b,2aba+b
given (ab)x+(a+b)y=a22abb2 is equation 1 and

(a+b)(x+y)=a2+b2 is equation 2 so on doing equation 1

equation 2 isx=a+b from this we can get

y=2aba+b

Hence option D is the correct answer.

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