Question

(a²+b²)(-a²+b²)
$(a + b)(a - b)$

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Answer 1

Answer:

a+b a-b

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Answer 2

$({a}^{2} + {b}^{2} )( - {a}^{2} + {b}^{2} ) \\ {a}^{2} ( - {a}^{2} + {b}^{2} ) + {b}^{2} ( - {a}^{2} + {b}^{2} ) \\ - {a}^{4} + {a}^{2} {b}^{2} - {a}^{2} {b}^{2} + {b}^{4} \\ - {a}^{4} + {b}^{4}$

$(a+b)(a-b)\\</p><p>a(a-b)+b(a-b)\\</p><p>({a}^{2} {-ab} +{ab}-{b}^{2})$