(2х - 3) во второй степени - 2х (4 + 2х) = 11

Question

(2х - 3) во второй степени - 2х (4 + 2х) = 11

Answer 1

(2х-3)^2 - 2x(4+2x) = 11
4(x^2) - 12x +9 - (8x +4(x^2)) = 11
-12x + 9 - 8x =11
-20x = 2
x= -0.1