Question

сократите дробь
25a^2-20ab+4b^2
-----------------------------
6b-15a

Answer 1

$............= frac{(5a-2b)(5a-2b)}{3(2b-5a)}= frac{-(2b-5a)(5a-2b)}{3(2b-5a)}= frac{2b-5a}{3}$