x2-5x+15=x+6

Simple and best practice solution for x2-5x+15=x+6 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 x2-5x+15=x+6 equation: 



x2-5x+15=x+6

We move all terms to the left:

x2-5x+15-(x+6)=0

We add all the numbers together, and all the variables

x^2-5x-(x+6)+15=0

We get rid of parentheses

x^2-5x-x-6+15=0

We add all the numbers together, and all the variables

x^2-6x+9=0

a = 1; b = -6; c = +9;
Δ = b2-4ac
Δ = -62-4·1·9
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$x=\frac{-b}{2a}=\frac{6}{2}=3$

See similar equations:

| (3)/(5x)+(7)/(2x)=1 | | 65=5+6x | | 1500+100x-x^2=0 | | 3(n+5)n=36 | | 14=k7 | | 4x+32=x+26 | | 4(2x-8)=3(2-3x4) | | x2+5x+5=x+2 | | 4x3=2x+9 | | 1x+1x+33=413 | | 1/4x=4x+24 | | 4(k-3=-8 | | (Y-4)×2=2y-8 | | 5y-2=y+14 | | 2x33=413 | | 12x+5x+7x+5+30+12=16 | | 5x-42=180 | | 6=8m | | b+50/2*48=1800 | | 0+21=4o+60 | | 10x-1·7x=25 | | b+50/2.48=1800 | | x=5x-180 | | 21x-5+21x+5=180 | | y=4(3+y)-y=6+3(y+2) | | A/64;a=-18 | | 8x+2076x+185=x | | 5-3(x-7)=12 | | y+4=2y-1 | | 158=-4(8+6r)+24r | | P+1.40.5;p=0.1 | | 6x2-7x-3=0 |

Equations solver categories