4x2-9x+4=0

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



4x^2-9x+4=0

a = 4; b = -9; c = +4;
Δ = b2-4ac
Δ = -92-4·4·4
Δ = 17
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-9)-\sqrt{17}}{2*4}=\frac{9-\sqrt{17}}{8}
$


$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-9)+\sqrt{17}}{2*4}=\frac{9+\sqrt{17}}{8}
$

See similar equations:

| 7x-8=8+10x-12+3x | | 7x-8=8+12x-10+3x | | 7x-8=8+13x-6+3x | | 7x-8=8+14x-6+3x | | 4(w-3)=52 | | 7x-8=8+4x-6+3x | | 4(w-30=52 | | 6–3a=2–2a | | 7x-8=8+12x-7+3x | | 7x-8=8+12x-8+3x | | 6c+14=-5c+9c | | 7x-8=8+12x-9+3x | | x/4=3=5 | | 7x-8=8+12x-11+3x | | 7x-8=8+12x-6+3x | | -6x+32=-4x+4 | | 256=32x-x^2 | | 7x-8=8+18x-+19x | | 3x/4-2x/3=1/2 | | a=10-300 | | x2=1000 | | a=12-300 | | 16-6q=3q+40 | | 7x-8=8+15x-9+3x | | -5x-25=5(x+1) | | 8(14w+2)=2(w−8)814w+2=2(w-8) | | 7x-8=8+6x-3+3x | | 3-(x+8)+7=3x-5+15 | | 7x-8=8+12x-8+2x | | 7x-8=8+9x-1+3x | | 3d+16=-2(5-3d) | | 343+7h2=0 |

Equations solver categories