15x^2+129x-54=0

Simple and best practice solution for 15x^2+129x-54=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 15x^2+129x-54=0 equation:


Simplifying
15x2 + 129x + -54 = 0

Reorder the terms:
-54 + 129x + 15x2 = 0

Solving
-54 + 129x + 15x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3'.
3(-18 + 43x + 5x2) = 0

Factor a trinomial.
3((-9 + -1x)(2 + -5x)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-9 + -1x)' equal to zero and attempt to solve: Simplifying -9 + -1x = 0 Solving -9 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + -1x = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -1x = 0 + 9 -1x = 0 + 9 Combine like terms: 0 + 9 = 9 -1x = 9 Divide each side by '-1'. x = -9 Simplifying x = -9

Subproblem 2

Set the factor '(2 + -5x)' equal to zero and attempt to solve: Simplifying 2 + -5x = 0 Solving 2 + -5x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -5x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -5x = 0 + -2 -5x = 0 + -2 Combine like terms: 0 + -2 = -2 -5x = -2 Divide each side by '-5'. x = 0.4 Simplifying x = 0.4

Solution

x = {-9, 0.4}

See similar equations:

| 5(a+4)=28+5a | | 4.5(-5.26)= | | 3.5s+10s=46 | | b+a=2x-2 | | 3y+4z=7 | | x-1-2x=11 | | 7+4a+a-5= | | 3(4x+8)=0 | | 7/25=b-1/5 | | 1-7(-2m-1)=22+7m | | 3z^2-19z=14 | | =6a+3b+8a-5b | | (4x)(8y)= | | f(x)=-16x^2+11x | | 2/3y=-24 | | (3q)(9-r)= | | 12y=45x+150 | | logsx=25 | | 1/8(8x)= | | 4x-8=16+x | | -5(x-4)=30 | | a*(2/3*a)*(-4/3*a)=v(a) | | -8+10=-6x+20 | | -14x-2=-68+19x | | 6x/5=18 | | 2x+3=-8x+23 | | Y^2=29-x^2 | | n/6.05=12.4 | | 7(v-5)=3v-31 | | 11y=154 | | X+x(x)=95 | | -1.7-0.3=x |

Equations solver categories