Question

Упростить выражение 5a+10b/a-5 * 15-3a/4b^2+4ab+a^2

Answer 1

$frac{5a + 10b}{a - 5} times frac{15 - 3a}{4 {b}^{2} + 4ab + {a}^{2} } = frac{5(a + 2b)}{a - 5} times frac{ 3(5- a)}{ {(2b + a)}^{2} } = - frac{15}{a + 2b}$