Question

(2x+1)в кв. + 2х < (2x +1) (2x-1)-4

Answer 1

$(2x+1)^2 + 2x textless (2x +1) (2x-1)-4 \ 4x^2+1+4x+2x textless 4x^2-1-4 \ 6x textless -6 \ x textless -1$

Answer 2

Спосибки!!!!

Answer 3

^^