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)
(2*x^2)/2 = 500 // - 500
(2*x^2)/2-500 = 0
1*x^2 = 500 // : 1
x^2 = 500
x^2 = 500 // ^ 1/2
abs(x) = 10*5^(1/2)
x = 10*5^(1/2) or x = -(10*5^(1/2))
x in { 10*5^(1/2), -(10*5^(1/2)) }
| x(2x)/2=500 | | (2m+1)x^2-(3m-1)x+2=0 | | 2/5w=-6 | | -5/8w=-8 | | 4x^3+x=0 | | 5c+8d=54 | | 18x+42=14x+58 | | 2/3^5 | | 2a-1=0 | | -4c-5d=-39 | | 3a+8b=-28 | | (m-2)x^2-2mx+m-3=0 | | 2(6-y-z)+2y+2z=12 | | 10a-3b=-34 | | y=-0.014x+5E+06 | | -16t^2+120t+48=0 | | h(t)=-16t^2+120t+48 | | -7x+3y=-71 | | -16t^2+120t+48=h(t) | | 9/10×1/3= | | 1(6-(5+z)-z)+3(5+z)+z=10 | | 4x-12=25 | | x^2=(.0081/.0009) | | 24-4y-4z+2y+2z=14 | | 3(5+4)-2*-3= | | x+(x+5)=11 | | 9(x)+8=-31 | | -3+1+(-2x)=x-3+(x+2) | | (t-5)=4 | | 24-2y-2z=14 | | x^4+4x^3-16x-12=0 | | x^2+0.9x+0.14=0 |