Question

Помогите с алгеброй пожалуйста

Answer 1

$frac{8b {}^{2} }{a {}^{2} - 36b {}^{2} } div frac{b}{a {}^{2} + 6ab } = frac{8b {}^{2} }{(a - 6b)(a + 6b)} times frac{a {}^{2} + 6ab }{b} = frac{8b}{(a - 6b)(a + 6b)} times a(a + 6b) = frac{8b}{a - 6b} times a = frac{8ab}{a - 6b}$