Решите уравнение (2х+1)^2-3(х-5)^2=(х+3)(х-3)

Question

Решите уравнение
(2х+1)^2-3(х-5)^2=(х+3)(х-3)

Answer 1

Х^2+34х-74=х^2-9
34х-65=0
34х=65
Х=65/34