x^2+2x-16=8

Simple and best practice solution for x^2+2x-16=8 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+2x-16=8 equation:


Simplifying
x2 + 2x + -16 = 8

Reorder the terms:
-16 + 2x + x2 = 8

Solving
-16 + 2x + x2 = 8

Solving for variable 'x'.

Reorder the terms:
-16 + -8 + 2x + x2 = 8 + -8

Combine like terms: -16 + -8 = -24
-24 + 2x + x2 = 8 + -8

Combine like terms: 8 + -8 = 0
-24 + 2x + x2 = 0

Factor a trinomial.
(-6 + -1x)(4 + -1x) = 0

Subproblem 1

Set the factor '(-6 + -1x)' equal to zero and attempt to solve: Simplifying -6 + -1x = 0 Solving -6 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + -1x = 0 + 6 Combine like terms: -6 + 6 = 0 0 + -1x = 0 + 6 -1x = 0 + 6 Combine like terms: 0 + 6 = 6 -1x = 6 Divide each side by '-1'. x = -6 Simplifying x = -6

Subproblem 2

Set the factor '(4 + -1x)' equal to zero and attempt to solve: Simplifying 4 + -1x = 0 Solving 4 + -1x = 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 + -1x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1x = 0 + -4 -1x = 0 + -4 Combine like terms: 0 + -4 = -4 -1x = -4 Divide each side by '-1'. x = 4 Simplifying x = 4

Solution

x = {-6, 4}

See similar equations:

| 35k^2+33k+4=0 | | 4x-6(.666x-5)=30 | | 5a^2+38a-16=0 | | n^2+4n-5=0 | | 6x-2(3x-7)=12 | | 2D+1=7 | | x=250y | | y=x^3+12x^2+45x+50 | | 2x=500y | | =x^3+12x^2+45x+50 | | 5n+2p=39 | | 4n=p | | -2x+6y=12 | | 3x+8=-4 | | 9-9=0 | | 6xn=30.5 | | x=.8(125) | | 3(.8y)+2y=550 | | 2(.6b)-b=1 | | x=-4(-.25)+2 | | 8x^2+3+5=0 | | 15z-7=14z+12 | | 5x^2-6+14x=0 | | 111-5x=2x+20 | | 10m-8=3m+20 | | 5(q+4)= | | 14y=5 | | 19+(16+x)= | | 3x-2(18-5x)=16 | | x*x^2+5x-42=0 | | x*x^3+5x-42=0 | | -4(t-4)-(t+1)=4 |

Equations solver categories