Question

Vă rog rezolvați cât mai repede e si f doar . Thank you !

Answer 1

e) 3(x-2)-(-6+x)+(-2)=-18

3x-6-12+2x=-18

5x-18=-18

5x=0

x=0/5=0

x=0

f) (x-1)²-(x+2)(x-1)+1=0

x²-2x+1-(x²-x+2x-2)+1=0

x²-2x+1-x²-x+2+1=0

-3x+4-0

-3x=-4

3x=4

x=4/3

x=1,(3)