If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-2*x;x^2
4*(1/5) = 5
2*x^2-1*x^3+0*x-1 = 0;x
x
4*(1/5) = 5
4*x^4+2*x+3;x^2-1
| y^3+3y^2+(-13y)+(-15)=0 | | 18g-15g-2g-g+3g=12 | | 7(x-6)=8(y-9) | | x*7-x*3=32 | | log(25)-2+log(2x)=-log(x+1) | | .25x-4=1.75x-3 | | 6b-.09=7b | | (-3k)/2=11 | | 4(1/5)=5 | | y^3+3y^2-13y-15=0 | | y^3+3y^2-12y-15=0 | | 4x-(2x-3)=6 | | 1/4x-4=7/4-3 | | (3-5i)-(-1+7i)=0 | | 8/7*5/12*3/10 | | 16q-10q-4q-q=16 | | g+-3g=-16 | | 50-h=h-50 | | .25x-4=7/4-3 | | y=-8x^2+16x+10 | | 9x+2x=3x+38 | | 7v-6v=10 | | 10c-7c+3c=18 | | 4s-s=20 | | 4x-2(2x+3)=6 | | -3m+6=-27 | | 3x+7=-2x+8+4x | | 1.28+.8-x=2x+1.8 | | 5j-3j+4j-4j=20 | | -3m+6=27 | | 6m-6m+5m-2m=18 | | (10x^4)+20x^3=0 |