6r^2+8r-8=0

Simple and best practice solution for 6r^2+8r-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 6r^2+8r-8=0 equation: 



6r^2+8r-8=0

a = 6; b = 8; c = -8;
Δ = b2-4ac
Δ = 82-4·6·(-8)
Δ = 256
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$r_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$r_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{256}=16$


$r_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(8)-16}{2*6}=\frac{-24}{12}
=-2
$


$r_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(8)+16}{2*6}=\frac{8}{12}
=2/3
$

See similar equations:

| b+9=3b | | (8x-16)(3x20)=180 | | q/19+11=13 | | F(x)=x3+x2-42x | | -65=-3x-10+14x | | x2-3x-85=0 | | 710x+35=570x25 | | q19+11=13 | | -2x-5+8x-3=7 | | 10=60/h | | 9+3g=-12 | | 14+w=18 | | b/5+6=24 | | 92=5y+-13 | | 22/9x=2/9+31/3 | | 3x+23+2x=10 | | -90.9=10x-70 | | -0.10(26)+0.40x=0.05(x-10) | | 2(9x-62)=9x5x-2 | | 7p21=3p | | 0.15y+0.09(y+7000)=1830 | | 3x+63x-8=110 | | 20=13x+79 | | 24y=y+48 | | 39.99+0.45=44.99x+0.40 | | 7=9w | | 6c+-6=48 | | 3(y)=6.3 | | 1x+2x-6=-12+2x | | u²−5u−14=0 | | 1.u²−5u−14=0 | | 270x+0.3x=0.3x |

Equations solver categories