Question

((a + b)^2 / a) : ((a^2 + 2ab + b^2) / (a^2 + a))

Answer 1

Решение:
$frac{(a + b)^{2} }{a} : frac{a^{2} + 2ab + b^{2} }{ a^{2} + a } = frac{ a^{2} + 2ab + b^{2} }{a} * frac{ a^{2} + a }{a^{2} + 2ab + b^{2} } = frac{a(a + 1)}{a} = a + 1$