x^2=-15-8x

Simple and best practice solution for x^2=-15-8x 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=-15-8x equation:


Simplifying
x2 = -15 + -8x

Solving
x2 = -15 + -8x

Solving for variable 'x'.

Reorder the terms:
15 + 8x + x2 = -15 + -8x + 15 + 8x

Reorder the terms:
15 + 8x + x2 = -15 + 15 + -8x + 8x

Combine like terms: -15 + 15 = 0
15 + 8x + x2 = 0 + -8x + 8x
15 + 8x + x2 = -8x + 8x

Combine like terms: -8x + 8x = 0
15 + 8x + x2 = 0

Factor a trinomial.
(5 + x)(3 + x) = 0

Subproblem 1

Set the factor '(5 + x)' equal to zero and attempt to solve: Simplifying 5 + x = 0 Solving 5 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + x = 0 + -5 x = 0 + -5 Combine like terms: 0 + -5 = -5 x = -5 Simplifying x = -5

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 = {-5, -3}

See similar equations:

| P=r+w/t | | 9x^2=-5x-8 | | m^2-21m+110=0 | | x^2+2x-46=2 | | x^6k/3 | | -5-2(x+2)=-81 | | -5-2(x+2)=-91 | | 5-2(x+4)=2x+5 | | 5/11=3b/11+8b/22 | | (4x+40)+(8x+20)=180 | | 4(2x+7)=8(-12+9x) | | 36y^2-9x^2=324 | | 7(-2b+6)=98 | | A-(-20)=-13 | | 13-9x=89-37x | | A-(-20)=-15 | | 8x+12=5x-9 | | x(-3)=29 | | 70=(250)(0.07)(t) | | 15(3n+8)= | | A-(-13)=-18 | | 2(-5+8r)=-138 | | -5t+5+7t=6t-1 | | 48-7b=97 | | 99*2.203= | | 21+n=28 | | -2(8+3a)=-8(a-1)-6 | | 91*2.203= | | Y-(-18)=11 | | 9x+16=8x^2 | | -6t+15+2t=5t-4 | | 83*2.203= |

Equations solver categories