If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x in (-oo:+oo)
(1/2)*x^2-(1/2) = 0
(1/2)*x^2-1/2 = 0
1/2*x^2 = 1/2 // : 1/2
x^2 = 1
x^2 = 1 // ^ 1/2
abs(x) = 1
x = 1 or x = -1
x in { 1, -1 }
| 8a^2+8=104 | | 30+(-35)=-355 | | 1/3x+12=5/6x-9 | | 0=-16t^2+300 | | 6x^2-17+7=0 | | y/3=-1 | | -23-7x=25-4x | | 35v^2=21+98v | | 0=-16t^2+26t | | 3x+5=-2x-2 | | 21y=4(5y-2) | | 12x1/3 | | 3(-1+2x)=63 | | -40+2x=86-5x | | 7x+8-6x=13 | | -5z+4=34 | | 1.2-6=18 | | 10x+20=8x+10 | | 500+11t-4.9t^2=0 | | 10x^2=15+25 | | z^2=-2z-8 | | -25-11x=7x+43 | | 1/3(t+6)=28 | | 0=-16t^2+180 | | 4(u+1)-u=3(u-1)+7 | | -2x-25=-4x+23 | | 6x+3=4x*9 | | 8x-63=37+4x | | 2(3x+1)=20 | | -6d+2-7=-29 | | 8b=-8-65b | | 9-4x=27 |