(x+3)2=x2+9

Simple and best practice solution for (x+3)2=x2+9 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+3)2=x2+9 equation: 



(x+3)2=x2+9

We move all terms to the left:

(x+3)2-(x2+9)=0

We add all the numbers together, and all the variables

-(+x^2+9)+(x+3)2=0

We multiply parentheses

-(+x^2+9)+2x+6=0

We get rid of parentheses

-x^2+2x-9+6=0

We add all the numbers together, and all the variables

-1x^2+2x-3=0

a = -1; b = 2; c = -3;
Δ = b2-4ac
Δ = 22-4·(-1)·(-3)
Δ = -8
Delta is less than zero, so there is no solution for the equation

See similar equations:

| 4x^2+11x+8=3x+4 | | 6x2+12x=5x−2 | | 4x^-4x=15 | | 300+10x=1200x | | 3/2=b=5 | | 1/2n+1=n+3 | | 8x+2=4+30 | | 10-3p=11 | | Y=2x2+4x-3 | | 8x+2=6x=12 | | 13x+10.49=1 | | -3(10-6/7x)=-174/7 | | 14x+(-16)=196 | | 4(x-3)=2x-12+2x | | 1/2(2x+2)=2/3(x-1) | | 13x+10.49=18038 | | -8(x+9)+(15x)=7(x+5)-15 | | 5x+4-3=6x-30+x | | -6(-5-3x)=120 | | y/2=3=9 | | 10x^2-44x+84=0 | | 3x-9(-2x-16)=3 | | Y=3x2-9x+5 | | 27x+x-x=140 | | r=(5r+10) | | -3(2x-1=-57 | | 27x+2-x=70 | | 11y/20-3=1-5y/4 | | 3x+24=96 | | 7/8(5k-8)=-9 | | 5x+10-6x+3=-3x-2 | | h+5/2=10 |

Equations solver categories