Question

решить уравнение (6x-1)(1+6x-4x(9x+3)=-145

Answer 1

(6x-1)(1+6x-4x)(9x+3)=-145 6x+36x^2-24x^2-1-6x+4x+9x+3+54x^2+18x-36x^2-12x=-145 -24x^2-1+4x+9x+54x^2+18x-12x=-145 30x^2+19x=144