5q2+9q+4=0

Simple and best practice solution for 5q2+9q+4=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 5q2+9q+4=0 equation: 



5q^2+9q+4=0

a = 5; b = 9; c = +4;
Δ = b2-4ac
Δ = 92-4·5·4
Δ = 1
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$q_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$q_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{1}=1$


$q_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(9)-1}{2*5}=\frac{-10}{10}
=-1
$


$q_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(9)+1}{2*5}=\frac{-8}{10}
=-4/5
$

See similar equations:

| 8w2+8w+2=0 | | 7x-7+61=180 | | (x+1)(x+2)=5 | | (3/2)t-16=(4/3)t-6 | | 26x-8-18x+3=22x-7-14x+13 | | 5x+7-9x=12-19x+15x-5 | | 4=2y-6y | | x²=99.84 | | a²=99.84 | | 1.2b-2.6=10.1-1.3b | | Y=3x+8+4x+10 | | -6x+-42=-12 | | 17+j=13 | | 5k=8k+12 | | 3x-2(12-5x)=12 | | 9c-12c=6 | | 3x-3x=2x(x+6) | | 3x-3(x)=x+6(2x) | | 3=x2x= | | 0.6x+12x=3x-26 | | 1/4(12m-28)=6-2(3m-1 | | 8(3a-5)-7(4a-3)=20-3a | | 0=3/5x-9 | | (n-8)(6n-5)=0 | | 216-u=262 | | 400=42(42x) | | 400=x(42x) | | 20^2=42(42x) | | 20^2=x(42x) | | 20*20=x(42x) | | 5x+10+180-5x+10=180 | | 3x+5x4-x+7=88 |

Equations solver categories