If it's not what You are looking for type in the equation solver your own equation and let us solve it.
(2x-3)x(x+4)=90
We move all terms to the left:
(2x-3)x(x+4)-(90)=0
We move all terms containing x to the left, all other terms to the right
(2x-3)x(x+4)=90
| -7/8x=-1 | | 4/k +3=14 | | (25+23x)+(115-35x)=40x+10 | | (10*p*p-10*p+6)/(4p-1)(2p+2)=1 | | x+2/x-7=2 | | 3^x^2+8x+17=9^6x+7 | | 16x-9=11x-64 | | 10*p*p-10*p+6=1 | | 48(a+4)=36(a-4) | | 4x+3=7x+-9 | | 10^(1-x)=6^x | | 39x=87.75 | | 120=(6x+30) | | 10x+36=7x+15 | | 18+5x=-2x-10 | | ((2+3x)/2)+((4-x)/7)=41/14 | | x34.25=87 | | 3y−4=6−2y | | 1+4/y=11/12 | | 15x-19=8x+37 | | -(x+2)(x-4)=0 | | -(x^2)(x-4)=0 | | -4(x+6)+6=6(x+4)+9 | | 35=j-12 | | 1÷2/3j=15 | | 7x-3(5-x)=2 | | X+(6,5x+11)=19-5x | | 26=q+15 | | 7x+9=3x-3 | | 2x/5+3/1-4x/5=1/5 | | X+(6,5+11)=19-5x | | 5x/2-12=x/3+1 |