Question

(x+2)^2+5(x-3)=(x-1)^2-3(x-2)

Answer 1

(x+2)²+5(x-3)=(x-1)²-3(x-2)

x²+2x×2+2²+5x-15=x²-2x+1-3x+6

x²+4x+4+5x-15=x²-5x+7

x²+9x-11=x²-5x+7

9x-11=-5x+7

9x+5x=7+11

14x=18

x=18/14

x=9/7

Answer 2

Răspuns:

x²+4x+4+5x-15=x²+2x+1-3x+6 ;   4x+5x-2x+3x=7-4+15 ; 10x =18 ;x=18/10 ;  x=1,8

Explicație pas cu pas: