3(x-4)=x(x+1)

Simple and best practice solution for 3(x-4)=x(x+1) equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 3(x-4)=x(x+1) equation: 



3(x-4)=x(x+1)

We move all terms to the left:

3(x-4)-(x(x+1))=0

We multiply parentheses

3x-(x(x+1))-12=0



We calculate terms in parentheses: -(x(x+1)), so:

x(x+1)

We multiply parentheses

x^2+x

Back to the equation:

-(x^2+x)



We get rid of parentheses

-x^2+3x-x-12=0

We add all the numbers together, and all the variables

-1x^2+2x-12=0

a = -1; b = 2; c = -12;
Δ = b2-4ac
Δ = 22-4·(-1)·(-12)
Δ = -44
Delta is less than zero, so there is no solution for the equation

See similar equations:

| 2(-1)-2y=6 | | (-4n-7)+15=24 | | 180=55+3y-8 | | 17x+170=17x | | 12/7=y/8 | | 1/7x-39=-33 | | 2x+2+3x=2x+2+1 | | 3/5(10-5x)+8=29 | | 31=3=4k | | 2x+9-5=9x+5 | | (3v+15)+17=-18 | | -75-9x=35+2x | | 10x+3-5x+12=-3x-9 | | (3v+15)+17=18 | | 7(2x+3)=3(4x+9) | | 3+p/6=6 | | 2x+2+3=5x+10 | | 3(7c-7)-9=-12 | | 10−2y=4 | | 3(7c-7)-9=12 | | 1x+1-1+2x=3+1x-1-1x+4 | | 10x-8-5x=22 | | 2.6/x=2/120 | | 25n+0.08(25n)=0 | | 3w−3=3 | | 4y-30+110=180 | | 6m2-11m-35=0 | | -4(2p-3)=20 | | 4(2p-3)=-20 | | -2+3y=y+-2+4y | | 3|x+7|-2=4 | | m-2-1=-4 |

Equations solver categories