9x^2=+6x+8=0

Simple and best practice solution for 9x^2=+6x+8=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+8=0 equation:



9x^2=+6x+8=0
We move all terms to the left:
9x^2-(+6x+8)=0
We add all the numbers together, and all the variables
9x^2-(6x+8)=0
We get rid of parentheses
9x^2-6x-8=0
a = 9; b = -6; c = -8;
Δ = b2-4ac
Δ = -62-4·9·(-8)
Δ = 324
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{324}=18$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-6)-18}{2*9}=\frac{-12}{18} =-2/3 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-6)+18}{2*9}=\frac{24}{18} =1+1/3 $

See similar equations:

| n/2-17=27 | | 5n-2n+3=2n-4n-2 | | -9x^2+6x+8=0 | | 3=11a-4/6 | | 5(c+3)=65 | | y+25+75=180 | | 6(n-5)=60 | | (x+4)/3=21 | | -14=8-2r | | (5.5)10x=12.4 | | 9a+21=48 | | X4-10x^2=-9 | | 9x+13=10x+3 | | -2(x-9)-7=x-5-3(x-2) | | 4x=64+x=21 | | 4-2(a+8)=6 | | 0=9x^2-3x | | d/3+10=9 | | x^2=47.5 | | 16=2(2w-2) | | 16=2(2w-2 | | P(x)=5x7−4x²+11x+17P(−1)= | | d/4+14=16 | | -5x-2x2=x2-2x+18 | | k-13/4=17/5 | | 6d−211=2d-213​ | | -15-4x=6-3× | | -5-2x2=x2-2x+18 | | -9x^2+6+8=0 | | 5x^2−23x−8=2 | | 1x+2x=-×2 | | -18+5x=-12x-+ |

Equations solver categories