Question

Simplificati raportul algebric astfel incit sa obtineti un raport algebric iredectibil:
4apatrat-4bpatrat
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2(b+a)patrat

Answer 1

 $\frac{4a^2-4b^2}{2(b+a)^2}=\frac{^2\not4(a\not+b)(a-b)}{\not2_1(b+a)^{\not2}}=\frac{2(a-b)}{a+b}$