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2u(u+7)(u-9)=0

We multiply parentheses ..

2u(+u^2-9u+7u-63)=0

We multiply parentheses

2u^3-18u^2+14u^2-126u=0

We do not support eupression: u^3

| 3(y+2)-4=10 | | 90=2x-4+3x-16 | | -2(18-3h)=7h+2h | | -5(g+3)=16 | | -2f-3=2f-25 | | 5-4x=23+2x | | 7+6e=4e-5 | | 7^x=3.5 | | 8x+22+9x+6=180 | | 12x-4=4(2x+2) | | 1.22x-9(3x-4)=1.29(x+5)-6 | | 1.09x-4(3x-9)=1.12(x+5)-2 | | 30/x-100=0 | | 5(3x-4)-1.10x=7-1.31(x+3) | | -3r-15=0 | | 5x-3(2/3x)=7 | | 11=y/2=9 | | 6x^2+5x+30=0 | | 14-v=236 | | 3x^2-5x+1=8x^2-2x-9 | | 0.3x^2+4x-3000=0 | | 36=k6 | | 48000=x+x*1/100 | | 48000=x+(x*1/100) | | Y=46-7x | | 17+p=17 | | 3+s=9 | | 5.5x+14=36 | | 8w/4-9=2 | | x-0.35x=537 | | x*x-69x+1080=0 | | 4((2x-2)=6(3x+2) |

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