Question

Simplify (a^2+b^2)^2=
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Answer 1

$\sf \blue{ \underline{answer \ : ↑↑↑ }}$

Answer 2

Answer:

(a 2−b 2 ) 2

Using,

(a−b) 2 =a 2 −2ab+b 2 we get

=(a 2 ) 2 −2(a 2)(b 2 )+(b 2 ) 2

=a 4 −2a 2 b 2 +b

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