Question

выполните умножение a2-b2a2-3a*2a-6b2+2ab+a2

Answer 1

$displaystyle frac{a^{2}-b^{2}}{a^{2}-3a}* frac{2a-6}{b^{2}+2ab+a^{2}}= frac{2(a-b)(a+b)(a-3)}{a(a-3)(a+b)^{2} }= frac{2(a-b)}{a(a+b)};$