0=x*x+7x+12

Simple and best practice solution for 0=x*x+7x+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 0=x*x+7x+12 equation:


Simplifying
0 = x * x + 7x + 12

Multiply x * x
0 = x2 + 7x + 12

Reorder the terms:
0 = 12 + 7x + x2

Solving
0 = 12 + 7x + x2

Solving for variable 'x'.

Combine like terms: 0 + -12 = -12
-12 + -7x + -1x2 = 12 + 7x + x2 + -12 + -7x + -1x2

Reorder the terms:
-12 + -7x + -1x2 = 12 + -12 + 7x + -7x + x2 + -1x2

Combine like terms: 12 + -12 = 0
-12 + -7x + -1x2 = 0 + 7x + -7x + x2 + -1x2
-12 + -7x + -1x2 = 7x + -7x + x2 + -1x2

Combine like terms: 7x + -7x = 0
-12 + -7x + -1x2 = 0 + x2 + -1x2
-12 + -7x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-12 + -7x + -1x2 = 0

Factor out the Greatest Common Factor (GCF), '-1'.
-1(12 + 7x + x2) = 0

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

Ignore the factor -1.

Subproblem 1

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

Subproblem 2

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

Solution

x = {-4, -3}

See similar equations:

| 14r=98 | | 3p^2+10p+7= | | 100+30+2y=180 | | h(x)=2x^2+3x+1 | | 2x-4=-4x+6 | | 4(3v-2)=8(2w+3) | | 3x+8=-x+12 | | 3y-11=-3 | | 65+73+7x=180 | | 2t^2+11t+9= | | M^2-6m-85=6 | | 2y^2+y+11=0 | | 76+68+3u=180 | | 3v^2+5v+2= | | 59=54y | | 6x=8+15y | | -x+3=-4x-6 | | Y=3x^2-115+444 | | -1.5x+6= | | 2(3x+5)=21 | | x+56=28 | | 47+7z+12z=180 | | -9n+(n-7)=6n-231 | | -30=-2(-1n+3) | | P^3+4p^2+8p+32=0 | | 9y=7y+8 | | -y-2(2y-1)=5(1-y) | | 8=10-2n | | 3x^2-5=54 | | 8=10-2 | | 8x-9y+73= | | 4(x-1)-x=23 |

Equations solver categories