u^2+u=12

Simple and best practice solution for u^2+u=12 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 u^2+u=12 equation:


Simplifying
u2 + u = 12

Reorder the terms:
u + u2 = 12

Solving
u + u2 = 12

Solving for variable 'u'.

Reorder the terms:
-12 + u + u2 = 12 + -12

Combine like terms: 12 + -12 = 0
-12 + u + u2 = 0

Factor a trinomial.
(-4 + -1u)(3 + -1u) = 0

Subproblem 1

Set the factor '(-4 + -1u)' equal to zero and attempt to solve: Simplifying -4 + -1u = 0 Solving -4 + -1u = 0 Move all terms containing u to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -1u = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -1u = 0 + 4 -1u = 0 + 4 Combine like terms: 0 + 4 = 4 -1u = 4 Divide each side by '-1'. u = -4 Simplifying u = -4

Subproblem 2

Set the factor '(3 + -1u)' equal to zero and attempt to solve: Simplifying 3 + -1u = 0 Solving 3 + -1u = 0 Move all terms containing u to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1u = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1u = 0 + -3 -1u = 0 + -3 Combine like terms: 0 + -3 = -3 -1u = -3 Divide each side by '-1'. u = 3 Simplifying u = 3

Solution

u = {-4, 3}

See similar equations:

| 7x+2(-x+6)=3 | | -2w-80+w^2= | | 6r+3s+2s+4r= | | 3x/8=7/11 | | 3(x+5)=2(x+4) | | 2x^2-8x=-2 | | (x+2y)(x+2y)= | | -2=7y+6x | | -5a-4a+b= | | 10-4(x+3)=x+2(x-2) | | x^2*x^4=y | | 1.7-(-0.8)+4.013= | | n^2=-36-12n | | n^2=-36-12 | | 25=x^2+8x | | 5(x+3)=12 | | 2xy+2xy= | | 3x=2.49 | | 4x+6(2x-7)=14+(x-1) | | -7b-31=6(3+7b) | | 4x-2y=3y-5x | | 8[4-(3x-5)]=120x+232 | | x^2+8x=25 | | -10+(x+6)=4-(2x-3) | | 21-4n=5(1-4n) | | t^4-p^4= | | -x^2+32x+144=0 | | 8-40-6x-4=5x-6 | | -45x+9y+45=0 | | ln(x)+ln(x+9)-2*ln(x+3)=0 | | -a+9=7 | | 12a+20b=24 |

Equations solver categories