4x*4x+8x-5=0

Simple and best practice solution for 4x*4x+8x-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 4x*4x+8x-5=0 equation:



4x*4x+8x-5=0
We add all the numbers together, and all the variables
8x+4x*4x-5=0
Wy multiply elements
16x^2+8x-5=0
a = 16; b = 8; c = -5;
Δ = b2-4ac
Δ = 82-4·16·(-5)
Δ = 384
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

The end solution:
$\sqrt{\Delta}=\sqrt{384}=\sqrt{64*6}=\sqrt{64}*\sqrt{6}=8\sqrt{6}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(8)-8\sqrt{6}}{2*16}=\frac{-8-8\sqrt{6}}{32} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(8)+8\sqrt{6}}{2*16}=\frac{-8+8\sqrt{6}}{32} $

See similar equations:

| -72.25=x^2+8.8 | | X2+9x+360=0 | | -4x-6=7x+10 | | 9y2+16-24y=0 | | 7(0.1x+0.3)-1.7=-0.3 | | -5(a+7)=-14a-26 | | y=0.003+25 | | x/2+44=84 | | (2-7i)^(-1)=0 | | 3x3=6x6 | | 200=3.14r^2 | | (3x-5)(9x+3)=0 | | 6x+5.9=7x+20 | | 0.0583+0.0348+8x=0.7 | | 0.0583+9x=0.7 | | 6/5*u=-30 | | 6/5u=-30 | | v-128.75=132.45 | | Y=1541+462x | | x+3/8=-112 | | Y=16+10x | | 3.14*r*r=154*154 | | 3.14*r*r=154 | | 2*3.14r=43.99 | | x+1/x-1=-6/x+3+8/x^2+2x-3 | | Y=(20000+20000x)*1.04x | | 5y+13=(-43)-3y | | X*x=19.25 | | 140=1x+6 | | 5v^2+10v-20=0 | | 4(x-2=17 | | a-5+3a+7=180 |

Equations solver categories