x^2+9*x-42=-6

Simple and best practice solution for x^2+9*x-42=-6 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+9*x-42=-6 equation:


Simplifying
x2 + 9x + -42 = -6

Reorder the terms:
-42 + 9x + x2 = -6

Solving
-42 + 9x + x2 = -6

Solving for variable 'x'.

Reorder the terms:
-42 + 6 + 9x + x2 = -6 + 6

Combine like terms: -42 + 6 = -36
-36 + 9x + x2 = -6 + 6

Combine like terms: -6 + 6 = 0
-36 + 9x + x2 = 0

Factor a trinomial.
(-12 + -1x)(3 + -1x) = 0

Subproblem 1

Set the factor '(-12 + -1x)' equal to zero and attempt to solve: Simplifying -12 + -1x = 0 Solving -12 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '12' to each side of the equation. -12 + 12 + -1x = 0 + 12 Combine like terms: -12 + 12 = 0 0 + -1x = 0 + 12 -1x = 0 + 12 Combine like terms: 0 + 12 = 12 -1x = 12 Divide each side by '-1'. x = -12 Simplifying x = -12

Subproblem 2

Set the factor '(3 + -1x)' equal to zero and attempt to solve: Simplifying 3 + -1x = 0 Solving 3 + -1x = 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 + -1x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1x = 0 + -3 -1x = 0 + -3 Combine like terms: 0 + -3 = -3 -1x = -3 Divide each side by '-1'. x = 3 Simplifying x = 3

Solution

x = {-12, 3}

See similar equations:

| 8-7x=118-42x | | 8=-14 | | 4*k^2-81=0 | | 4x^2+36x-88= | | 88-2x=3x+13 | | 3*x^2-3*x-36=0 | | y=0.1(30)+3E-17 | | 3y^2-36y-135=0 | | 2x=5+40-3x | | 4x+30=11x-54 | | 9x+5y=34 | | x^2+bx+c=0 | | 9x-8=6x+14 | | 77-7x=38x+17 | | 5x+37=11x-59 | | x^6=-9x^4 | | r^2-3r+2=0 | | x+4(x+5)=4 | | 124-3x=5x+20 | | 12x+-7y=-49 | | 3x-(x+6)=-4 | | 3*x^2=-4*x-2 | | x^2=1-x | | 6+5+x=4+7 | | x-2(x-1)=3x-5(x+2) | | 5*n^2=9+n | | b=.17*.5 | | 5*n^2+4*n=10 | | 8-6x=12-7x | | 2x+9=31 | | y=0.17*.5+b | | 2x+4.7=7.1 |

Equations solver categories