(x+8)(x+3)=119

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Solution for (x+8)(x+3)=119 equation:


Simplifying
(x + 8)(x + 3) = 119

Reorder the terms:
(8 + x)(x + 3) = 119

Reorder the terms:
(8 + x)(3 + x) = 119

Multiply (8 + x) * (3 + x)
(8(3 + x) + x(3 + x)) = 119
((3 * 8 + x * 8) + x(3 + x)) = 119
((24 + 8x) + x(3 + x)) = 119
(24 + 8x + (3 * x + x * x)) = 119
(24 + 8x + (3x + x2)) = 119

Combine like terms: 8x + 3x = 11x
(24 + 11x + x2) = 119

Solving
24 + 11x + x2 = 119

Solving for variable 'x'.

Reorder the terms:
24 + -119 + 11x + x2 = 119 + -119

Combine like terms: 24 + -119 = -95
-95 + 11x + x2 = 119 + -119

Combine like terms: 119 + -119 = 0
-95 + 11x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '95' to each side of the equation.
-95 + 11x + 95 + x2 = 0 + 95

Reorder the terms:
-95 + 95 + 11x + x2 = 0 + 95

Combine like terms: -95 + 95 = 0
0 + 11x + x2 = 0 + 95
11x + x2 = 0 + 95

Combine like terms: 0 + 95 = 95
11x + x2 = 95

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 = 95 + 30.25

Reorder the terms:
30.25 + 11x + x2 = 95 + 30.25

Combine like terms: 95 + 30.25 = 125.25
30.25 + 11x + x2 = 125.25

Factor a perfect square on the left side:
(x + 5.5)(x + 5.5) = 125.25

Calculate the square root of the right side: 11.191514643

Break this problem into two subproblems by setting 
(x + 5.5) equal to 11.191514643 and -11.191514643.

Subproblem 1

x + 5.5 = 11.191514643 Simplifying x + 5.5 = 11.191514643 Reorder the terms: 5.5 + x = 11.191514643 Solving 5.5 + x = 11.191514643 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 = 11.191514643 + -5.5 Combine like terms: 5.5 + -5.5 = 0.0 0.0 + x = 11.191514643 + -5.5 x = 11.191514643 + -5.5 Combine like terms: 11.191514643 + -5.5 = 5.691514643 x = 5.691514643 Simplifying x = 5.691514643

Subproblem 2

x + 5.5 = -11.191514643 Simplifying x + 5.5 = -11.191514643 Reorder the terms: 5.5 + x = -11.191514643 Solving 5.5 + x = -11.191514643 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 = -11.191514643 + -5.5 Combine like terms: 5.5 + -5.5 = 0.0 0.0 + x = -11.191514643 + -5.5 x = -11.191514643 + -5.5 Combine like terms: -11.191514643 + -5.5 = -16.691514643 x = -16.691514643 Simplifying x = -16.691514643

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.691514643, -16.691514643}

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