4x2+9x+5=0

Simple and best practice solution for 4x2+9x+5=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 4x2+9x+5=0 equation:



4x^2+9x+5=0
a = 4; b = 9; c = +5;
Δ = b2-4ac
Δ = 92-4·4·5
Δ = 1
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

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

See similar equations:

| 4(x–5)=1–3x | | 75x=32 | | 2+3+3X15=x | | 103x=x+4 | | Y=1/3x-1/8 | | 8x+3=6x-1 | | 8x+3=61-1 | | 9/2×1/63=a | | -17u-9=8 | | -8(x-7)=-5x+47 | | 9/2=a/63 | | 27-x=207 | | x+27=1/2(180-x) | | -6y+40=2(y-4) | | x^2-50x+672=0 | | (X+14)(x+7)=12 | | 2(h-8)-h=h=16 | | 3t^2+6t-68=4 | | 49=7^{4-5x} | | 5x2=10 | | 0.12x+0.5+x÷2=x/3+1.5 | | -9.40x=x | | 4+4+3×15=x | | 3x+7=7x+27 | | 3(w+1)=-4W-39 | | (x+2)2-(x-2)2=3x+4 | | x=x2+20x+93 | | n^2-12n-73=-11 | | 4(b−1.4)=17.6 | | (x^2-3x)-(2x+6)=0 | | (x-6)/(2x+2)=-3 | | 3x+3=15.6 |

Equations solver categories