Question

помогите срочняк с алгеброй

Answer 1

$frac{14 {a}^{2} {b}^{5} }{21 {a}^{3} {b}^{2} } = frac{2 {b}^{3} }{3a} \ frac{3 {x}^{2} (x + 7)}{6(x + 7)} = frac{ {x}^{2} }{2} \ frac{b(a + 2)}{(a - 2)(a + 2)} = frac{b}{a - 2} \ frac{(x + 3) ^{2} }{(x + 3)( {x}^{2} - 3x + 9) } = frac{x + 3}{ {x}^{2} - 3x + 9 }$

Answer 2

спасибо