Question

Me ajudem; conjunto dos números reais
X- 25=0
X-6x+9=0
X+2x+x+2=0
X-3x+2=0

Answer 1

1)x = 25

2)-5x+9 =0
-5x=-9
x = 9/5

3)4x+2=0
4x=-2
x=-2/4
x=-1/2

4)-2x+2=0
-2x=-2
x=2/2
x=1