Question

Сделайте плиз 437 и 438..........

Answer 1

$frac{6b+5a^{2}-5b^{2}-5a^{2}}{ab}=frac{6b-5b^{2}}{ab}=frac{b(6-5b)}{ab}=frac{6-5b}{a}\ frac{2b+3a^{2}+10b^{2}-3a^{2}}{ab}=frac{2b+10b^{2}}{ab}=frac{2b(1+5b)}{ab}=frac{2(1+5b)}{a}$