If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-6x^3-21x^2+138x-63=0
We do not support expression: x^3
| 3×(1.3)^x=11 | | x-12=+54 | | -8x+7-6(x-1)=-6x-(7x-6)+6 | | 7–2x=13 | | x-12=154 | | 4n=7n=2 | | 6(2v-3)v=5 | | 25×25+7×7=c×c | | 3x²+90=360 | | -7+2x=-28 | | 4x+1=-3+4x | | 36-2.5w=8 | | 5+5*5=x | | A(x)=30x+15 | | -y^2+2y+1=-1 | | 9x+3=46 | | 3x+48=6x-36 | | 15=-4k+3.8 | | 5x+x/5=52 | | Y=3x2-7x+12 | | Y=x(x-8)+2(4x+15) | | 1/5(50-10b)+15=1/3(9b-30)-15 | | 21(21)=7x(28x) | | 4m-1=13 | | 21x21=7x(28x) | | 6x+x/4=-5 | | -2b/5=5 | | Y=-2x2+3x | | Y=x2-7x+3 | | t+3/5=5/1/4 | | x-71=20 | | 5/2/3+m=9/3/4 |