If it's not what You are looking for type in the equation solver your own equation and let us solve it.
(45x+300)(85x-0.5x^2)=50
We move all terms to the left:
(45x+300)(85x-0.5x^2)-(50)=0
We move all terms containing x to the left, all other terms to the right
(45x+300)(85x-0.5x^2)=50
| 5(t+10)=80 | | 2(-1+k)=14 | | 12x-22+7x+18=10x-6 | | -2u-1=-10-3u | | n/6+-83=-77 | | -3/4+1/20x=-1/2 | | (45x+300)-(85x-0.5x^2)=50 | | 6k=3k+9 | | (2(x)+6)+36+x=180 | | -8(b-94)=-32 | | -8g-1=9-9g | | (2(x)+6)+36-x=180 | | 12x–4(8x–2)=59+9 | | -2(p-98)=64 | | s=150/5 | | -2d+5=-d | | b-0.8=0.12 | | 135+(5x-4)+(3x+31)+(4x+15)+(6x-8)+120+(7x-64)=900 | | 4x-2+2x=6x+2 | | 4n=7-10n | | 70=2(m-15) | | -2x-(-5)=71 | | 4m2+8m+3=0 | | Y=26x+65 | | 9+6f=45 | | 7x+0.20=5x+0.20 | | s=150/7 | | -7(u-97)=0 | | 2/5(10x-15)=5+2x+7 | | x/4+12=36 | | 4(j-77)=60 | | 12x+22=3x+85 |