2x2+8x=x2-16

Simple and best practice solution for 2x2+8x=x2-16 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 2x2+8x=x2-16 equation: 



2x^2+8x=x2-16

We move all terms to the left:

2x^2+8x-(x2-16)=0

We add all the numbers together, and all the variables

2x^2-(+x^2-16)+8x=0

We get rid of parentheses

2x^2-x^2+8x+16=0

We add all the numbers together, and all the variables

x^2+8x+16=0

a = 1; b = 8; c = +16;
Δ = b2-4ac
Δ = 82-4·1·16
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$x=\frac{-b}{2a}=\frac{-8}{2}=-4$

See similar equations:

| 9n-6n=19-34 | | F(x)=1/2) | | y=7E-06 | | 3x+4/4+x+40/6=15 | | 0.75(0.25+8)-(0.5+2)=0.375(4-x)-0.25 | | 17-r=-3r+6r+1 | | B-5-5b=-3b-4 | | 18x+10-3x=-30+5x | | m=26,8-6.8+3m | | M=-4(4+m)+2 | | (3x+5)-(7x-1)=0 | | -5/8t=-20 | | 3x+(x+5)+(x-15)=180 | | 3x+5-7x-1=0 | | 0.3(80)=x | | -47=-u4 | | -4/5m=-16 | | 120=4•6•4+2•4•h | | 3x+220=5x-300 | | x^2-18+58=0 | | 2(2x-4)=5-(x/2+8) | | 9x-32=5x+35 | | (580-20)x4=1588 | | (580-)x4=1588 | | -4m+17-7(m-4)=8m-(7m-4)-6m+5 | | 3/16=(-5/4)+g | | -54y-94=-4-37 | | 6x-13=14x+38 | | -54x-94=37 | | 72x-89=81 | | x+125=100 | | 3^(-5x)=8 |

Equations solver categories