6r^2-5r-6=0

Simple and best practice solution for 6r^2-5r-6=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^2-5r-6=0 equation:



6r^2-5r-6=0
a = 6; b = -5; c = -6;
Δ = b2-4ac
Δ = -52-4·6·(-6)
Δ = 169
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$r_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$r_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{169}=13$
$r_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-5)-13}{2*6}=\frac{-8}{12} =-2/3 $
$r_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-5)+13}{2*6}=\frac{18}{12} =1+1/2 $

See similar equations:

| 4/5x+2/4+1/5x=x | | w+3(w+8)=7w+27 | | 2/3+2/4+1/5x=2/3x | | -9x2=7 | | x/2-2/3=3x/2+4/2 | | 20=8x-4.9x^2 | | 3(n+11)=42 | | 3x-5+10=60 | | 200x=12 | | 22000=X+0.3x | | X+0.3X=y | | 24=3(21-x)+2(x-4) | | X=6(x+8)+4 | | 3(x-7)+9=18 | | 1+3z=45 | | b+2.3=0.7 | | G=8/3(p-42) | | s-11=-17 | | 22/(4x+1)=18/7.5 | | 10x-4(x+5)+1=-63 | | -3x+5=9x-25 | | 7x/2+6=3 | | 3.2m+6.3=5-8 | | 3x-5+10=180 | | -19+15=-2n-19-19n | | -72-6x=-14x+128 | | 98-x=25 | | 5y+1=10 | | x^2-36x+75=0 | | 4y-4=-4 | | 9. 7+5x=3x+13 | | -32+10x=50+7x |

Equations solver categories