Question

(3х-8)²-(4х-6)²+(5х-2)(х+2)=24

Answer 1

9x^2 - 48x+64 - (16x^2 - 48x+36)+5x^2+10x - 2x - 4 - 24 = 0
9x^2 - 48x + 64 - 16x^2 +48x -36 + 5x^2+10x - 2x - 28 =0
- 2 x^2+8x=0 / : (-1)
 2x^2- 8x=0 / :(2)
 x^2 - 4x=0
 x(x- 4)=0
 x=0 или x-4=0
               x= 4
 Ответ: 0 ; 4