(2x+6)(2x+12)-72=162

Simple and best practice solution for (2x+6)(2x+12)-72=162 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 (2x+6)(2x+12)-72=162 equation:


Simplifying
(2x + 6)(2x + 12) + -72 = 162

Reorder the terms:
(6 + 2x)(2x + 12) + -72 = 162

Reorder the terms:
(6 + 2x)(12 + 2x) + -72 = 162

Multiply (6 + 2x) * (12 + 2x)
(6(12 + 2x) + 2x * (12 + 2x)) + -72 = 162
((12 * 6 + 2x * 6) + 2x * (12 + 2x)) + -72 = 162
((72 + 12x) + 2x * (12 + 2x)) + -72 = 162
(72 + 12x + (12 * 2x + 2x * 2x)) + -72 = 162
(72 + 12x + (24x + 4x2)) + -72 = 162

Combine like terms: 12x + 24x = 36x
(72 + 36x + 4x2) + -72 = 162

Reorder the terms:
72 + -72 + 36x + 4x2 = 162

Combine like terms: 72 + -72 = 0
0 + 36x + 4x2 = 162
36x + 4x2 = 162

Solving
36x + 4x2 = 162

Solving for variable 'x'.

Reorder the terms:
-162 + 36x + 4x2 = 162 + -162

Combine like terms: 162 + -162 = 0
-162 + 36x + 4x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-81 + 18x + 2x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-81 + 18x + 2x2)' equal to zero and attempt to solve: Simplifying -81 + 18x + 2x2 = 0 Solving -81 + 18x + 2x2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -40.5 + 9x + x2 = 0 Move the constant term to the right: Add '40.5' to each side of the equation. -40.5 + 9x + 40.5 + x2 = 0 + 40.5 Reorder the terms: -40.5 + 40.5 + 9x + x2 = 0 + 40.5 Combine like terms: -40.5 + 40.5 = 0.0 0.0 + 9x + x2 = 0 + 40.5 9x + x2 = 0 + 40.5 Combine like terms: 0 + 40.5 = 40.5 9x + x2 = 40.5 The x term is 9x. Take half its coefficient (4.5). Square it (20.25) and add it to both sides. Add '20.25' to each side of the equation. 9x + 20.25 + x2 = 40.5 + 20.25 Reorder the terms: 20.25 + 9x + x2 = 40.5 + 20.25 Combine like terms: 40.5 + 20.25 = 60.75 20.25 + 9x + x2 = 60.75 Factor a perfect square on the left side: (x + 4.5)(x + 4.5) = 60.75 Calculate the square root of the right side: 7.794228634 Break this problem into two subproblems by setting (x + 4.5) equal to 7.794228634 and -7.794228634.

Subproblem 1

x + 4.5 = 7.794228634 Simplifying x + 4.5 = 7.794228634 Reorder the terms: 4.5 + x = 7.794228634 Solving 4.5 + x = 7.794228634 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.5' to each side of the equation. 4.5 + -4.5 + x = 7.794228634 + -4.5 Combine like terms: 4.5 + -4.5 = 0.0 0.0 + x = 7.794228634 + -4.5 x = 7.794228634 + -4.5 Combine like terms: 7.794228634 + -4.5 = 3.294228634 x = 3.294228634 Simplifying x = 3.294228634

Subproblem 2

x + 4.5 = -7.794228634 Simplifying x + 4.5 = -7.794228634 Reorder the terms: 4.5 + x = -7.794228634 Solving 4.5 + x = -7.794228634 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.5' to each side of the equation. 4.5 + -4.5 + x = -7.794228634 + -4.5 Combine like terms: 4.5 + -4.5 = 0.0 0.0 + x = -7.794228634 + -4.5 x = -7.794228634 + -4.5 Combine like terms: -7.794228634 + -4.5 = -12.294228634 x = -12.294228634 Simplifying x = -12.294228634

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.294228634, -12.294228634}

Solution

x = {3.294228634, -12.294228634}

See similar equations:

| 2x-8y-6x+3y= | | 3(5x+4)=15x+2 | | 3(5x+4)=15x | | 2xdy-ydx=x^2dy | | 3/4y=4 | | -3(5-3k)=3(x-4) | | 0.16(y-2)+0.14y=0.12y-0.5 | | (1/2)(4)(3/2)=x | | 15x+4=-9x+32 | | 9(x+4)-(2x-1)=5 | | (1/2)(4)(3/2) | | 6(3x+5)=2(4x+5) | | 7x=13/17 | | lnx=-a | | xa+hy=m | | -540+13.5g=112 | | 6x+2=-3+3x+20 | | 6x+2=3-3+3x+20 | | x^2+y^2-2x-2y=4 | | -540-13.5g=1500 | | 2x(x^3-5x+4)=0 | | 3.07x-4.5=-11.2233 | | ln((x-2)(x-2))=18 | | (-2i)/(-4-3i) | | (x+3)(-2x+4)=0 | | y-2=-2y | | 64x^2+64x=-24 | | 11/3=5/y | | 3/4*n=6 | | X*3X*2X=900 | | 3u+1=76 | | T(n)=2n^2+n |

Equations solver categories