Question

a^2-b^2/3a+3b * 3a^2/5b-5a

Answer 1

$- \frac{ {3a}^{3} + {3a}^{2}b }{15a + 10b}$

Объяснение:

$\frac{ {a}^{2} - {b}^{2} }{3a + 3b } \times \frac{3 {a}^{2} }{5b - 5a}$

$\frac{(a - b) \times (a + b)}{3a + 2b} \times \frac{ {3a}^{2} }{ - 5( - b + a )}$

$\frac{a + b}{3a + 2b} \times \frac{ {3a}^{2} }{ - 5}$

$- \frac{ {3a}^{2} \times (a + b) }{5(3a + 2b)}$

$= - \frac{ {3a}^{3} + {3a}^{2}b }{15a + 10b}$