-x^2-7x-12=0

Simple and best practice solution for -x^2-7x-12=0 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 -x^2-7x-12=0 equation:


Simplifying
-1x2 + -7x + -12 = 0

Reorder the terms:
-12 + -7x + -1x2 = 0

Solving
-12 + -7x + -1x2 = 0

Solving for variable 'x'.

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:

| x-7.9=-6.7 | | 6x-16=50 | | 6+-8+5= | | 25x=21x+24x+4 | | -8+3h=2(h-5) | | x-5+4x+2=2x-7 | | -4m+4(m+2)=2-6m | | 11-7x=127-35x | | x-279= | | 5x^2-12x+2=0 | | 6-14*4= | | x^2-16x-1=0 | | 0=10+2t+4t | | 6x+6=-120-10x | | 6-14= | | z^2+22+c= | | -7-5x=5x+16 | | 2x+7(3-4)=0 | | 60-2x=7x-8x | | 3(x-6)+2x=22-3x | | 3x+36=12x-36 | | 6f+24=-2f | | (2-x)*3=18 | | X+6=3(4+x) | | 1410-7x=20+23 | | x^2-30x-20=0 | | (-7)+(-20)= | | 8x+2=3x+12 | | 2b+-9=29 | | r^2-2rf-24f^2=0 | | -81-40x=7x+2 | | C=15(3n+8) |

Equations solver categories