If it's not what You are looking for type in the equation solver your own equation and let us solve it.
(40-2x)(18-2x)(x)=0
We add all the numbers together, and all the variables
(-2x+40)(-2x+18)x=0
We multiply parentheses ..
(+4x^2-36x-80x+720)x=0
We multiply parentheses
4x^3-36x^2-80x^2+720x=0
We do not support expression: x^3
| 5=n/3+6 | | 43-3n=-5 | | 2=s/4 | | -10+8n=7n | | -3b-9b-7=9-10b | | 0.4(x–7)=18 | | 15-2(x-4)=13 | | 6x/2+2=18 | | -2+9g=-7+10g | | 2+10+3y=20 | | 11v=-5+16v | | 5p–14=4(2p+1) | | 10=5a | | -6(7v-5)-3=(v-6) | | 10=10x+11x | | 23=13+b | | 75=0.5x | | x+14=-17x+1-5 | | -1-10k=-9k+2 | | -4+7r=-10+9r | | 3j-j-j=10 | | 20z-18z-z=15 | | P+14=-17p+1-5 | | 100=10000x4 | | 28-7r=28-r | | 15t+-5=-10 | | 3a+2a-a-4a+2a=16 | | 15t=36.6t^2 | | ?x7=23 | | 10(x–5)=-80 | | -0.7g-4.82=0.5g+4.3 | | –9u+6=–4u+1 |