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)
(X^2)/2 = 50 // - 50
(X^2)/2-50 = 0
1/2*X^2 = 50 // : 1/2
X^2 = 100
X^2 = 100 // ^ 1/2
abs(X) = 10
X = 10 or X = -10
X in { 10, -10 }
| -3.876+2x=-9.34 | | 3x+48=6x-9 | | -6[k+1]=-3-[6k+3] | | 5y-6=7y-5 | | 13.71+0.12h=14.21-0.14h | | 3.876+2x=-9.34 | | p/24=20/18 | | 16=4[x+8] | | n/30=12/15 | | -27=3[x-2] | | 14.21-0.14h=13.71+0.12h | | -4(w+5)=-2w-22 | | 6k=11 | | 2*1-3y=0 | | -4x+5=3x-7 | | 10x+2.8= | | 6x+6y-20=0 | | 2*0-3y=0 | | 75=1/2x | | 6x-7x=11 | | 2*-1-3y=0 | | -1=3f-4 | | 2.8x+10= | | 6x+4=304 | | 3(y+7)-7y=1 | | 5[x-4]=-50 | | 13.71+0.12h=14.21-0.14 | | 2*-2-3y=0 | | 3x+2(1x+4)=5(1x+1)+3 | | 5y=-3+8 | | 8y-5-3y+2=0 | | x=-3(y+1)-6 |