Question

4+[x-(2+1)²+1+=6-x(1-2) ² .................. tem  so q difícil

Answer 1

4+[x-(2+1)^2+1=6-x(1-2)^2]
4+[x-4+1+1=6-x+1^2+2.1.(-2)+(-2)^2]
4+[x-4+2=6-x+1-4+4]
4+[x+x=1-4+4-2+4]
4+[2x=1-2+4]
4+[2x=3]
4+2x=3
2x=3-4
2x=-1
x=-1/2