2r^2+13r+16=0

Simple and best practice solution for 2r^2+13r+16=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 2r^2+13r+16=0 equation: 



2r^2+13r+16=0

a = 2; b = 13; c = +16;
Δ = b2-4ac
Δ = 132-4·2·16
Δ = 41
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{41}}{2*2}=\frac{-13-\sqrt{41}}{4}
$


$r_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(13)+\sqrt{41}}{2*2}=\frac{-13+\sqrt{41}}{4}
$

See similar equations:

| 5x/3+4=0 | | 2x+6/5=10 | | A(n)=12+(2-1)(3) | | 0.2(3y-5)=0.15(2y+3)-0.86 | | 29-x=5x+5 | | K^2+2k-59=0 | | d/4-3=2 | | x^2-120x+4880=0 | | 6^(3x-4)*2^(2x+3)=648*(48)^x | | (1/2)n+6=20 | | 6^3x-4*2^2x+3=648*(48)^x | | 96b^2-50=0 | | 2x^2-2+202=0 | | 9=-7-(p/4) | | 14-3x=5x-22 | | X^-10x+20=0 | | 5(2x+1)=3(×+4)-5 | | ((2x+58)/2)-x=29 | | 4x=17+3x | | -(1×7x)-6(-7-x)=36 | | -10-6(x-7)=-4+4(1-x) | | 10x-2=9x+9 | | 4v^2-28v+28=0 | | d/4+12=15 | | 4/6=9/x | | 3b+5=13 | | 6x-4x=0.727 | | (3)/(4)-(1)/(2)m=(5)/(8) | | 8+2f=12 | | 8-2f=12 | | 2c-5=4c/5-2c | | 4x^2-37=251 |

Equations solver categories