Question

Упростите выражения плиииииииииииз

Answer 1

$frac{a^{2}}{a+b}- frac{a^{3}}{(a+b)^{2}}: frac{a}{a+b}- frac{a^{2}}{(a+b)^{2}}=frac{a^{2}}{a+b}- frac{a^{3}}{(a+b)^{2}}* frac{a+b}{a}-frac{a^{2}}{(a+b)^{2}}= \ =frac{a^{2}}{a+b}- frac{a^{2}}{a+b}-frac{a^{2}}{(a+b)^{2}}=-frac{a^{2}}{(a+b)^{2}}$