(x+6)*(x+6)+2=23

Simple and best practice solution for (x+6)*(x+6)+2=23 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+6)*(x+6)+2=23 equation:


Simplifying
(x + 6)(x + 6) + 2 = 23

Reorder the terms:
(6 + x)(x + 6) + 2 = 23

Reorder the terms:
(6 + x)(6 + x) + 2 = 23

Multiply (6 + x) * (6 + x)
(6(6 + x) + x(6 + x)) + 2 = 23
((6 * 6 + x * 6) + x(6 + x)) + 2 = 23
((36 + 6x) + x(6 + x)) + 2 = 23
(36 + 6x + (6 * x + x * x)) + 2 = 23
(36 + 6x + (6x + x2)) + 2 = 23

Combine like terms: 6x + 6x = 12x
(36 + 12x + x2) + 2 = 23

Reorder the terms:
36 + 2 + 12x + x2 = 23

Combine like terms: 36 + 2 = 38
38 + 12x + x2 = 23

Solving
38 + 12x + x2 = 23

Solving for variable 'x'.

Reorder the terms:
38 + -23 + 12x + x2 = 23 + -23

Combine like terms: 38 + -23 = 15
15 + 12x + x2 = 23 + -23

Combine like terms: 23 + -23 = 0
15 + 12x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-15' to each side of the equation.
15 + 12x + -15 + x2 = 0 + -15

Reorder the terms:
15 + -15 + 12x + x2 = 0 + -15

Combine like terms: 15 + -15 = 0
0 + 12x + x2 = 0 + -15
12x + x2 = 0 + -15

Combine like terms: 0 + -15 = -15
12x + x2 = -15

The x term is 12x.  Take half its coefficient (6).
Square it (36) and add it to both sides.

Add '36' to each side of the equation.
12x + 36 + x2 = -15 + 36

Reorder the terms:
36 + 12x + x2 = -15 + 36

Combine like terms: -15 + 36 = 21
36 + 12x + x2 = 21

Factor a perfect square on the left side:
(x + 6)(x + 6) = 21

Calculate the square root of the right side: 4.582575695

Break this problem into two subproblems by setting 
(x + 6) equal to 4.582575695 and -4.582575695.

Subproblem 1

x + 6 = 4.582575695 Simplifying x + 6 = 4.582575695 Reorder the terms: 6 + x = 4.582575695 Solving 6 + x = 4.582575695 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + x = 4.582575695 + -6 Combine like terms: 6 + -6 = 0 0 + x = 4.582575695 + -6 x = 4.582575695 + -6 Combine like terms: 4.582575695 + -6 = -1.417424305 x = -1.417424305 Simplifying x = -1.417424305

Subproblem 2

x + 6 = -4.582575695 Simplifying x + 6 = -4.582575695 Reorder the terms: 6 + x = -4.582575695 Solving 6 + x = -4.582575695 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + x = -4.582575695 + -6 Combine like terms: 6 + -6 = 0 0 + x = -4.582575695 + -6 x = -4.582575695 + -6 Combine like terms: -4.582575695 + -6 = -10.582575695 x = -10.582575695 Simplifying x = -10.582575695

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-1.417424305, -10.582575695}

See similar equations:

| -cos(5x)+sin(4x)=0 | | 4XM-2=24 | | -25=v/9 | | Sin(4x)-cos(5x)=0 | | 15x+23=4x-34 | | (1-y)y=1 | | 3a+7b=2 | | 6x+2=8x+4 | | 6m-9n=54 | | 7x+6=9y+2 | | 41-10x=20+11x | | x+y=100graph | | 17-11x=81 | | 17-11=-81 | | -144[3.14159]=-12[3.14159]k | | 5e^3x=10 | | 1/3x^6-2x^5 | | 6j=7j+8 | | 3x^2+20x-4000=0 | | 6x-7=-12x+29 | | 6p-2=3p+13 | | s-[-10]=2 | | 2XR+10=420 | | 3a^3(2a-7)+4a^2(3a^2-8a)= | | 24x-2=14+8x | | .07(h+2)+1.6=17 | | 5x+9x=12 | | 2-7d=6-3D | | 11a/10 | | -5x^3+20x=0 | | 4a+6b=5 | | t^2/9-t/3=2 |

Equations solver categories