9x^2-16x-80=0

Simple and best practice solution for 9x^2-16x-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^2-16x-80=0 equation:


Simplifying
9x2 + -16x + -80 = 0

Reorder the terms:
-80 + -16x + 9x2 = 0

Solving
-80 + -16x + 9x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-20 + -9x)(4 + -1x) = 0

Subproblem 1

Set the factor '(-20 + -9x)' equal to zero and attempt to solve: Simplifying -20 + -9x = 0 Solving -20 + -9x = 0 Move all terms containing x to the left, all other terms to the right. Add '20' to each side of the equation. -20 + 20 + -9x = 0 + 20 Combine like terms: -20 + 20 = 0 0 + -9x = 0 + 20 -9x = 0 + 20 Combine like terms: 0 + 20 = 20 -9x = 20 Divide each side by '-9'. x = -2.222222222 Simplifying x = -2.222222222

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 = {-2.222222222, 4}

See similar equations:

| 6x+18x= | | 2m+3=2m | | 6+5(x-6)=6-5(x-3) | | 0.7x-3=53 | | 13x-430=974 | | 3x+5=-(x-9) | | 0=-16t^2-8t+10 | | 43x-500=2682 | | 0=-16t^2-8t+5 | | 17x-47=259 | | 23x+30=582 | | 11-7x=24-14x | | 4y-5+y=1+3y-4y | | 3x^2+6x=8 | | 9r+10=2-4r | | -7b=112 | | 162=15X+12 | | 16y-5=63-y | | 3x+2x+22=3x+30 | | 3+(2k+1)=2m | | 3x^2+12x=3 | | 14=5x-10 | | 3+(2k+1)=m | | 3+5(x-6)=4-5(x-2) | | 3y^2+11y+6=0 | | 2-2+3= | | [8x+5]+13=5 | | 6.3x-3.9=15.0 | | 5(2n+1)=8(3n+6)+6 | | 3(y-1)=-2y | | 7x-48=22 | | 6(40)+50=200+10(10)+5 |

Equations solver categories