Question

Помогите с алгеброй пожалуйста

Answer 1

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