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)
((2/3)*x^21)/10 = 0
1/15*x^21 = 0 // : 1/15
x^21 = 0
x = 0
x = 0
| 44=2n | | 6*sin(3*x)= | | 7/8-1/12x-3/4-8/15x= | | V^2-3v=10 | | p+9=5 | | 5/9(90-32) | | -3=3(a-14)-2a | | -4-12=9x+16-8x | | 1/2x-6=-10 | | 8x-19= | | 5-(6-p)=13-p | | -9+7=t+3 | | 9=y/6 | | 2(r-2)-r=-2+3 | | 2(y-5)-6y=22 | | 15x-1= | | 7+13x=180 | | 82^(3/2) | | 3c(2c-1)=0 | | X^2+32x-185=0 | | 4(a+2)-3a=3 | | 2.4n+1.2n-0.12=7.08 | | 23m=12 | | 52.6+1x=80 | | 6(X+4)=3(X+9)+3 | | 4d^2-14d=-10 | | 9x-48/x=5 | | 52.6+8x=180 | | 3/5=6/y | | 3+6(x+2)+x= | | 52.6+5x=180 | | 3/5=6y |