(x+5)(x+6)=130

Simple and best practice solution for (x+5)(x+6)=130 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+5)(x+6)=130 equation:


Simplifying
(x + 5)(x + 6) = 130

Reorder the terms:
(5 + x)(x + 6) = 130

Reorder the terms:
(5 + x)(6 + x) = 130

Multiply (5 + x) * (6 + x)
(5(6 + x) + x(6 + x)) = 130
((6 * 5 + x * 5) + x(6 + x)) = 130
((30 + 5x) + x(6 + x)) = 130
(30 + 5x + (6 * x + x * x)) = 130
(30 + 5x + (6x + x2)) = 130

Combine like terms: 5x + 6x = 11x
(30 + 11x + x2) = 130

Solving
30 + 11x + x2 = 130

Solving for variable 'x'.

Reorder the terms:
30 + -130 + 11x + x2 = 130 + -130

Combine like terms: 30 + -130 = -100
-100 + 11x + x2 = 130 + -130

Combine like terms: 130 + -130 = 0
-100 + 11x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '100' to each side of the equation.
-100 + 11x + 100 + x2 = 0 + 100

Reorder the terms:
-100 + 100 + 11x + x2 = 0 + 100

Combine like terms: -100 + 100 = 0
0 + 11x + x2 = 0 + 100
11x + x2 = 0 + 100

Combine like terms: 0 + 100 = 100
11x + x2 = 100

The x term is 11x.  Take half its coefficient (5.5).
Square it (30.25) and add it to both sides.

Add '30.25' to each side of the equation.
11x + 30.25 + x2 = 100 + 30.25

Reorder the terms:
30.25 + 11x + x2 = 100 + 30.25

Combine like terms: 100 + 30.25 = 130.25
30.25 + 11x + x2 = 130.25

Factor a perfect square on the left side:
(x + 5.5)(x + 5.5) = 130.25

Calculate the square root of the right side: 11.412712211

Break this problem into two subproblems by setting 
(x + 5.5) equal to 11.412712211 and -11.412712211.

Subproblem 1

x + 5.5 = 11.412712211 Simplifying x + 5.5 = 11.412712211 Reorder the terms: 5.5 + x = 11.412712211 Solving 5.5 + x = 11.412712211 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5.5' to each side of the equation. 5.5 + -5.5 + x = 11.412712211 + -5.5 Combine like terms: 5.5 + -5.5 = 0.0 0.0 + x = 11.412712211 + -5.5 x = 11.412712211 + -5.5 Combine like terms: 11.412712211 + -5.5 = 5.912712211 x = 5.912712211 Simplifying x = 5.912712211

Subproblem 2

x + 5.5 = -11.412712211 Simplifying x + 5.5 = -11.412712211 Reorder the terms: 5.5 + x = -11.412712211 Solving 5.5 + x = -11.412712211 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5.5' to each side of the equation. 5.5 + -5.5 + x = -11.412712211 + -5.5 Combine like terms: 5.5 + -5.5 = 0.0 0.0 + x = -11.412712211 + -5.5 x = -11.412712211 + -5.5 Combine like terms: -11.412712211 + -5.5 = -16.912712211 x = -16.912712211 Simplifying x = -16.912712211

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.912712211, -16.912712211}

See similar equations:

| 5/6x4/9 | | 5+0.5x=200 | | 2(4-x)=x-(5x+8) | | 6(2n+3)=28+7n | | ((3*6)-5+(2*6)+8)/(2*6) | | (3w-5+2w+8)/2w | | -15=14m+5 | | y/6+9=17 | | 8f-7=65 | | 3x+2x=170 | | 3x=170 | | n/5+7=18 | | 3s-15=75 | | 23x-32=20x-23 | | p/7-3=4 | | 3x^6= | | 9y-30=150 | | t/2-14=36 | | 4u+9=37 | | x/8-1=7 | | -16x-20=13x+7 | | x/12+6=10 | | 4x+0.5y+0.25y=z | | 86-10=x | | m/6+13=19 | | h/6+8=11 | | a/9+7=16 | | w/8+4=8 | | 4x+0.5y+0.25z=1 | | 4x+0.5y+0.25y=1 | | n/9-6=0 | | e/4+14=16 |

Equations solver categories