x^2+6x+8=6

Simple and best practice solution for x^2+6x+8=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+8=6 equation:


Simplifying
x2 + 6x + 8 = 6

Reorder the terms:
8 + 6x + x2 = 6

Solving
8 + 6x + x2 = 6

Solving for variable 'x'.

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

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

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

Begin completing the square.

Move the constant term to the right:

Add '-2' to each side of the equation.
2 + 6x + -2 + x2 = 0 + -2

Reorder the terms:
2 + -2 + 6x + x2 = 0 + -2

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

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

The x term is 6x.  Take half its coefficient (3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
6x + 9 + x2 = -2 + 9

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

Combine like terms: -2 + 9 = 7
9 + 6x + x2 = 7

Factor a perfect square on the left side:
(x + 3)(x + 3) = 7

Calculate the square root of the right side: 2.645751311

Break this problem into two subproblems by setting 
(x + 3) equal to 2.645751311 and -2.645751311.

Subproblem 1

x + 3 = 2.645751311 Simplifying x + 3 = 2.645751311 Reorder the terms: 3 + x = 2.645751311 Solving 3 + x = 2.645751311 Solving for variable 'x'. 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 = 2.645751311 + -3 Combine like terms: 3 + -3 = 0 0 + x = 2.645751311 + -3 x = 2.645751311 + -3 Combine like terms: 2.645751311 + -3 = -0.354248689 x = -0.354248689 Simplifying x = -0.354248689

Subproblem 2

x + 3 = -2.645751311 Simplifying x + 3 = -2.645751311 Reorder the terms: 3 + x = -2.645751311 Solving 3 + x = -2.645751311 Solving for variable 'x'. 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 = -2.645751311 + -3 Combine like terms: 3 + -3 = 0 0 + x = -2.645751311 + -3 x = -2.645751311 + -3 Combine like terms: -2.645751311 + -3 = -5.645751311 x = -5.645751311 Simplifying x = -5.645751311

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.354248689, -5.645751311}

See similar equations:

| 5v+34=-2(v+4) | | y=1E+06e-3E-06x | | 4(x-6)=6x-36 | | 8n^2-162=0 | | 6t+8=13 | | 11(v+3)-2v=3(3v+2)-14 | | .5t=16 | | 1616.786=566.77+59.66h | | 4t-17=32 | | 6t=186 | | 5(x+2)=5(1+3) | | 22+12(3)= | | 10t^4+5t^3=0 | | f(x)=(x+2)*(x+2)+(2*x-3)*(2*x-3) | | f(x)=(x+2)+(2*x-3) | | 9x+21=-2x | | x^3+2*x^2+7*x-3=0 | | 580.586=116.1172+27.004*h | | 4(y^2+2)=24 | | 3-2m=-2 | | 12y+15=-3(4y-5) | | 3-2m=2 | | 2(x-4)=20-2x-12 | | 2ab^2= | | X^3+3x-4x=0 | | (3y)2= | | -9x^2-9x+40=0 | | 5a^2*5b^3= | | 22+12(3)=15(3)+13 | | 4a^2+28a+48=0 | | x=0.5+3.8 | | 22+12x(3)= |

Equations solver categories