# X^2-25=-4x-4

## Simple and best practice solution for X^2-25=-4x-4 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so dont 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^2-25=-4x-4 equation:

X^2-25=-4X-4
We move all terms to the left:
X^2-25-(-4X-4)=0
We get rid of parentheses
X^2+4X+4-25=0
We add all the numbers together, and all the variables
X^2+4X-21=0
a = 1; b = 4; c = -21;Δ = b2-4acΔ = 42-4·1·(-21)Δ = 100The delta value is higher than zero, so the equation has two solutionsWe use following formulas to calculate our solutions:$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}$$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$\sqrt{\Delta}=\sqrt{100}=10$
$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(4)-10}{2*1}=\frac{-14}{2} =-7$
$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(4)+10}{2*1}=\frac{6}{2} =3$

`