Сократите дробь (5x+3)^2-(5x-3)^2\x

Question

Сократите дробь
(5x+3)^2-(5x-3)^2\x

Answer 1

(5x+3 -(5x-3))(5x+3 +(5x-3)) /x =(5x+3 -5x +3)(5x+3 +5x -3) /x =(6*10x)/x =6*10 =60