If it's not what You are looking for type in the equation solver your own equation and let us solve it.
3(7x-5)-(2x+4)x2=0
We multiply parentheses
-2x^3-4x^2+21x-15=0
We do not support expression: x^3
| 4x+3=-5x6 | | 3t-9t=18 | | x²-(7x+6)=x+59 | | 63+5x=65+4x | | 24(-1/3u-1/8)=24(-3/4u+5/8) | | n+35=23 | | 3/x+5/2=6 | | -10/7m=9 | | 8t=-69 | | 5y-23=6y+4y-17 | | X^-x=11 | | (x+7)(x+3)=x´2+10x+21 | | 0.06x=1.2 | | 5(3x−4)=8(x+2)+5 | | t/0.7+3=1.8 | | -2/3x+-2/15=-1/8x+-1/20 | | 8/3=40/x | | x+1/2x+2/3x=x-4 | | x3+3x2+2x-5=0 | | x+1/2x+2/3x=30-4 | | 2x+0,5x+(0,25x+3)=300 | | (5-x/2)+16=10x | | 2x*8x=0 | | 2x*8x²=0 | | 2x(5x+3)-(8x²+2)=02 | | Y=-5x+3Y=2x-4 | | r=2*3.14*7.24 | | 1/3(x+x+1)=7 | | x=6-2(-8) | | (29b-6)-7(4b+4)=-6 | | s=1/2*32*10 | | 2x(5x+3)-8x²+2)=1 |