15x^2+130x+168=-7

Simple and best practice solution for 15x^2+130x+168=-7 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 15x^2+130x+168=-7 equation:


Simplifying
15x2 + 130x + 168 = -7

Reorder the terms:
168 + 130x + 15x2 = -7

Solving
168 + 130x + 15x2 = -7

Solving for variable 'x'.

Reorder the terms:
168 + 7 + 130x + 15x2 = -7 + 7

Combine like terms: 168 + 7 = 175
175 + 130x + 15x2 = -7 + 7

Combine like terms: -7 + 7 = 0
175 + 130x + 15x2 = 0

Factor out the Greatest Common Factor (GCF), '5'.
5(35 + 26x + 3x2) = 0

Factor a trinomial.
5((7 + x)(5 + 3x)) = 0

Ignore the factor 5.

Subproblem 1

Set the factor '(7 + x)' equal to zero and attempt to solve: Simplifying 7 + x = 0 Solving 7 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + x = 0 + -7 x = 0 + -7 Combine like terms: 0 + -7 = -7 x = -7 Simplifying x = -7

Subproblem 2

Set the factor '(5 + 3x)' equal to zero and attempt to solve: Simplifying 5 + 3x = 0 Solving 5 + 3x = 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 + 3x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 3x = 0 + -5 3x = 0 + -5 Combine like terms: 0 + -5 = -5 3x = -5 Divide each side by '3'. x = -1.666666667 Simplifying x = -1.666666667

Solution

x = {-7, -1.666666667}

See similar equations:

| -4x^3+100=0 | | (10+p)32=2976 | | sinx=0.30 | | sinx=0.39 | | 5p^2+10p-8=-9 | | 2+7x+8x+88=180 | | -11y-y^2=0 | | 10+10+10+10+10+10+10+10+10+10+x=196 | | n(-14-n)=0 | | 2+7x+8x+88+180= | | 2+7x+8x+88+18= | | n(11+n)=0 | | -8x+x^2=0 | | m-(-34)=-98 | | 4x^2-8=136 | | 25x^2-49x^2y^2+16y^2=0 | | y+23=59 | | 15+n^2=0 | | 16+n^2=0 | | 10x^2-6x^2=4x^2 | | X^3-5x^2-57x-189=15 | | 2+7x=46 | | 2x/5=5x/6=-13 | | -8x+(-24)=16 | | X^3-5x^2-57x-99=15 | | 4(6+5v)=38+6v | | -4x+(-24)=12 | | 10x-4=7x+2 | | 10-4y-Y=10-5y | | 38.94+0.5x=110 | | 3(x-9)=4x-9 | | 5x+18-7=x-1 |

Equations solver categories