Question

(2х – 3)^2 – 3 = (2х + 1)^2 – 11
(^2 это степень)

Answer 1

$(2x - 3)^{2} - 3 = {(2x + 1)}^{2} - 11 \\ 4 {x}^{2} + 9 - 12x- 3 = 4 {x}^{2} + 1 + 4x - 11 \\ 4 {x}^{2} - 4x {}^{2} - 12x - 4x = 1 - 11 + 3 - 9 \\ - 16x = - 16 \\ 16x = 16 \\ x = 1$