X(x+4)=4x+16

Simple and best practice solution for X(x+4)=4x+16 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 X(x+4)=4x+16 equation:



X(X+4)=4X+16
We move all terms to the left:
X(X+4)-(4X+16)=0
We multiply parentheses
X^2+4X-(4X+16)=0
We get rid of parentheses
X^2+4X-4X-16=0
We add all the numbers together, and all the variables
X^2-16=0
a = 1; b = 0; c = -16;
Δ = b2-4ac
Δ = 02-4·1·(-16)
Δ = 64
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{64}=8$
$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-8}{2*1}=\frac{-8}{2} =-4 $
$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+8}{2*1}=\frac{8}{2} =4 $

See similar equations:

| q=8 | | 5x+3x-9x-2=0 | | -1=3-2x | | 10p=-6 | | 9=r=2 | | (6x)-(2/9x^-(4/3))=0 | | 3(x-2)-5(2x+1=2 | | 9+7x+4x=86 | | 2 = 8j | | 8r+9=168 | | 5^(1-9x)=6^x | | 5x-10=6x+72 | | 16w^2-3w+1=0 | | 8r+ 9= 168 | | 2^2-2x-340=0 | | 8 r+ 9= 168 | | 1.286=2^x | | 5^(x^2)=50 | | x+6x-8=4x | | 5x-10=3(2x+12) | | 2q=74 | | x+10+6x=52 | | -3=y-6 | | b=63/9 | | j=54+10 | | 1.9v-4.002=3v-2.48v | | 5x+3x=32-2x | | 15+14(6x)=95 | | 48/8=g | | 36=30+2x | | w=32/4 | | 3/8+p/8=27/8 |

Equations solver categories