9x^2-6x-80=0

Simple and best practice solution for 9x^2-6x-80=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 9x^2-6x-80=0 equation: 


Simplifying
9x2 + -6x + -80 = 0

Reorder the terms:
-80 + -6x + 9x2 = 0

Solving
-80 + -6x + 9x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-8 + -3x)(10 + -3x) = 0


Subproblem 1
Set the factor '(-8 + -3x)' equal to zero and attempt to solve:

Simplifying
-8 + -3x = 0

Solving
-8 + -3x = 0

Move all terms containing x to the left, all other terms to the right.

Add '8' to each side of the equation.
-8 + 8 + -3x = 0 + 8

Combine like terms: -8 + 8 = 0
0 + -3x = 0 + 8
-3x = 0 + 8

Combine like terms: 0 + 8 = 8
-3x = 8

Divide each side by '-3'.
x = -2.666666667

Simplifying
x = -2.666666667

Subproblem 2
Set the factor '(10 + -3x)' equal to zero and attempt to solve:

Simplifying
10 + -3x = 0

Solving
10 + -3x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-10' to each side of the equation.
10 + -10 + -3x = 0 + -10

Combine like terms: 10 + -10 = 0
0 + -3x = 0 + -10
-3x = 0 + -10

Combine like terms: 0 + -10 = -10
-3x = -10

Divide each side by '-3'.
x = 3.333333333

Simplifying
x = 3.333333333
Solution
x = {-2.666666667, 3.333333333}

See similar equations:

| -8+13=m-2 | | 5(x)+5(x+18)=180 | | x/(10-x)=67.5/22.5 | | .1y-6=-10 | | 4-(m-3)=-6m+8 | | X^2-1x-16=0 | | 3x-(2x+8)=3 | | 55x^2+11x=0 | | 6a+4=360 | | 4-(m-3)=-6+8 | | 0.30x+0.25(90)=0.15(122) | | 3(2+5x)=(2+5x)(x+1) | | 5+3*3.6-3= | | 2r-9=7+10r | | (1-3x)+4=-4(2x+1) | | 5+3b-3=13 | | -9=13 | | 599608x^3-29984x^2+64465.6x=-46679.4 | | 1.55=.10x+.05(7)+.05x | | -7(x+3)+5=-16 | | w+8=2w | | 3n+2-5n=6n-4 | | 8xw=3x+11v | | 5x-10=2+8x | | 1.55=.10x+.05(7)+.10x | | -.25(8b-16)-16=4 | | 15x+8=23x | | 0.222n+0.5=0.666(n+3) | | 8wx=3x+11v | | 3(p+2)=8 | | 4x+5(1-3(2x-1))=2(2x+5) | | -2x+5-3(4x)=-5x+50 |

Equations solver categories