4r2-13r+6=0

Simple and best practice solution for 4r2-13r+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 4r2-13r+6=0 equation: 



4r^2-13r+6=0

a = 4; b = -13; c = +6;
Δ = b2-4ac
Δ = -132-4·4·6
Δ = 73
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$r_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$r_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$r_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-13)-\sqrt{73}}{2*4}=\frac{13-\sqrt{73}}{8}
$


$r_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-13)+\sqrt{73}}{2*4}=\frac{13+\sqrt{73}}{8}
$

See similar equations:

| d/10-83=64500500500500500500500500500500500500500500500500500500500500500500500500500500500500500500500500500 | | 4-2(1+5x)=-25 | | A=90+.6t | | 14=v/3+4 | | 17|3(x-3|2=-5|4 | | 95=-5(3n-7) | | 34n=306 | | w+8.6=48.7 | | 9x-1=-46 | | -3.4+10.43=-4.1t | | 5y-0=15 | | 2/3x-20=16 | | 8u=104 | | -12t+18=-8t-18 | | 11x-14=8x | | 1.6+y=13.9 | | 3x+(x+26)=90 | | -12+7r=19r | | 9.6^2+x^2=16^2 | | w-9.4=25.5 | | 11j-10-14j=17-12j | | -3x+105=7x+35 | | -12j-9=-4j+5-9j | | -30=4v-7v | | 6=4x-34 | | 3x-3/6+x+25/4=11 | | 9.75-9.6n=-11.5n-19.63-3.3 | | -8.1+y=19.5 | | 7x+20=2x+80 | | 7x-4)+(19)+(10x+3)=52 | | -3.8+6.1p=4.9p-10.52 | | -w-3=-3w+11 |

Equations solver categories