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

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


Simplifying
x2 + -6x + 9 = 2x + 6

Reorder the terms:
9 + -6x + x2 = 2x + 6

Reorder the terms:
9 + -6x + x2 = 6 + 2x

Solving
9 + -6x + x2 = 6 + 2x

Solving for variable 'x'.

Reorder the terms:
9 + -6 + -6x + -2x + x2 = 6 + 2x + -6 + -2x

Combine like terms: 9 + -6 = 3
3 + -6x + -2x + x2 = 6 + 2x + -6 + -2x

Combine like terms: -6x + -2x = -8x
3 + -8x + x2 = 6 + 2x + -6 + -2x

Reorder the terms:
3 + -8x + x2 = 6 + -6 + 2x + -2x

Combine like terms: 6 + -6 = 0
3 + -8x + x2 = 0 + 2x + -2x
3 + -8x + x2 = 2x + -2x

Combine like terms: 2x + -2x = 0
3 + -8x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-3' to each side of the equation.
3 + -8x + -3 + x2 = 0 + -3

Reorder the terms:
3 + -3 + -8x + x2 = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -8x + x2 = 0 + -3
-8x + x2 = 0 + -3

Combine like terms: 0 + -3 = -3
-8x + x2 = -3

The x term is -8x.  Take half its coefficient (-4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
-8x + 16 + x2 = -3 + 16

Reorder the terms:
16 + -8x + x2 = -3 + 16

Combine like terms: -3 + 16 = 13
16 + -8x + x2 = 13

Factor a perfect square on the left side:
(x + -4)(x + -4) = 13

Calculate the square root of the right side: 3.605551275

Break this problem into two subproblems by setting 
(x + -4) equal to 3.605551275 and -3.605551275.

Subproblem 1

x + -4 = 3.605551275 Simplifying x + -4 = 3.605551275 Reorder the terms: -4 + x = 3.605551275 Solving -4 + x = 3.605551275 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = 3.605551275 + 4 Combine like terms: -4 + 4 = 0 0 + x = 3.605551275 + 4 x = 3.605551275 + 4 Combine like terms: 3.605551275 + 4 = 7.605551275 x = 7.605551275 Simplifying x = 7.605551275

Subproblem 2

x + -4 = -3.605551275 Simplifying x + -4 = -3.605551275 Reorder the terms: -4 + x = -3.605551275 Solving -4 + x = -3.605551275 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = -3.605551275 + 4 Combine like terms: -4 + 4 = 0 0 + x = -3.605551275 + 4 x = -3.605551275 + 4 Combine like terms: -3.605551275 + 4 = 0.394448725 x = 0.394448725 Simplifying x = 0.394448725

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.605551275, 0.394448725}

See similar equations:

| 3(5r+40)=15(3r-24) | | x=3.51-1.9 | | 3x-5=5+7x | | 5x-(x+6)=32 | | 4(2.2-1)-0.8d=23 | | 3x^2-6=34-2x^2 | | 9p-29=16+4p | | 2r-28=-40+4r | | 6(3+5x)-5=193 | | 8x^2-6x^2=54 | | 2x^2-30=70 | | 3x^2+4x^2=35 | | p=4g+4u | | h+5=9h | | 4x^2+17x-79=-2 | | 5a^2+4a-1=0 | | X^2-25=25 | | -9=-7+x+2 | | -12+7=x+3 | | 4+x+3=-3 | | x^2+10x+25=11 | | -5+x=4 | | 4x^2+15=-16x | | -11+x=-8 | | 4-7+x=-4 | | -5=-8+x+3 | | -3=5+x-9 | | 8+x-12=1 | | x-5=-1 | | -6+x=-4 | | -4=x+3 | | 3t-25=-25+9t |

Equations solver categories