(3x-1)²-8(x+1)²=(x+2)(x-2) помогите плс. Created by judoshka72. algebra-ru

(3x-1)²-8(x+1)²=(x+2)(x-2) помогите плс...

July 2022 1 4 Report

(3x-1)²-8(x+1)²=(x+2)(x-2) помогите плс

KarinaYouchi (3x-1)^2-8(x+1)^2=(x+2)(x-2)
9x^2-6x+1-8(x^2+2x+1)=x^2-4
9x^2-6x+1-8x^2-16x-8-x^2+4=0
-22x=3
x=-3/22

4 votes Thanks 1