5x+15=x^2+6x+9

Simple and best practice solution for 5x+15=x^2+6x+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 5x+15=x^2+6x+9 equation:


Simplifying
5x + 15 = x2 + 6x + 9

Reorder the terms:
15 + 5x = x2 + 6x + 9

Reorder the terms:
15 + 5x = 9 + 6x + x2

Solving
15 + 5x = 9 + 6x + x2

Solving for variable 'x'.

Reorder the terms:
15 + -9 + 5x + -6x + -1x2 = 9 + 6x + x2 + -9 + -6x + -1x2

Combine like terms: 15 + -9 = 6
6 + 5x + -6x + -1x2 = 9 + 6x + x2 + -9 + -6x + -1x2

Combine like terms: 5x + -6x = -1x
6 + -1x + -1x2 = 9 + 6x + x2 + -9 + -6x + -1x2

Reorder the terms:
6 + -1x + -1x2 = 9 + -9 + 6x + -6x + x2 + -1x2

Combine like terms: 9 + -9 = 0
6 + -1x + -1x2 = 0 + 6x + -6x + x2 + -1x2
6 + -1x + -1x2 = 6x + -6x + x2 + -1x2

Combine like terms: 6x + -6x = 0
6 + -1x + -1x2 = 0 + x2 + -1x2
6 + -1x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
6 + -1x + -1x2 = 0

Factor a trinomial.
(2 + -1x)(3 + x) = 0

Subproblem 1

Set the factor '(2 + -1x)' equal to zero and attempt to solve: Simplifying 2 + -1x = 0 Solving 2 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1x = 0 + -2 -1x = 0 + -2 Combine like terms: 0 + -2 = -2 -1x = -2 Divide each side by '-1'. x = 2 Simplifying x = 2

Subproblem 2

Set the factor '(3 + x)' equal to zero and attempt to solve: Simplifying 3 + x = 0 Solving 3 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + x = 0 + -3 x = 0 + -3 Combine like terms: 0 + -3 = -3 x = -3 Simplifying x = -3

Solution

x = {2, -3}

See similar equations:

| x+y=1.8 | | 26=5v+7(v+2) | | 4(2x+6)+15= | | 25s^2+29s+9=0 | | 6x+15=2x-4 | | 0,20=x*2-(x*2/100*5)-x | | 3x+2=-7x-11 | | 5a+a=78 | | 3000n+28000=2000n+36000 | | 2+7(-2m-1)=117 | | 3(w-3)+4w=33 | | 1.00x+12x=30,720 | | 1.00x+12x=30,720.00 | | 3/5w=40 | | 22=7y+5(y+2) | | 0=x^3-7x+7 | | 5a+5=78 | | 15=.5y | | 5(2y-4)=1 | | 14m+9-6m= | | 7-3x=(-4)x+13 | | x+12x=30,720.00 | | 0,20=((X*2/100*5)-x) | | 0.05(80)+0.4x=0.2(80+x) | | -9(x+5)=3(x+23) | | x+12x=30,720 | | 3x/10=24/9 | | 3(2)-9=5(2-3) | | 49x^2+168x+144=0 | | -9x-35=3x-69 | | 1=y-2x+5 | | 0.05(80)+0.4=0.2(80+x) |

Equations solver categories