(x-9)(x-8)=5x+37

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Solution for (x-9)(x-8)=5x+37 equation:


Simplifying
(x + -9)(x + -8) = 5x + 37

Reorder the terms:
(-9 + x)(x + -8) = 5x + 37

Reorder the terms:
(-9 + x)(-8 + x) = 5x + 37

Multiply (-9 + x) * (-8 + x)
(-9(-8 + x) + x(-8 + x)) = 5x + 37
((-8 * -9 + x * -9) + x(-8 + x)) = 5x + 37
((72 + -9x) + x(-8 + x)) = 5x + 37
(72 + -9x + (-8 * x + x * x)) = 5x + 37
(72 + -9x + (-8x + x2)) = 5x + 37

Combine like terms: -9x + -8x = -17x
(72 + -17x + x2) = 5x + 37

Reorder the terms:
72 + -17x + x2 = 37 + 5x

Solving
72 + -17x + x2 = 37 + 5x

Solving for variable 'x'.

Reorder the terms:
72 + -37 + -17x + -5x + x2 = 37 + 5x + -37 + -5x

Combine like terms: 72 + -37 = 35
35 + -17x + -5x + x2 = 37 + 5x + -37 + -5x

Combine like terms: -17x + -5x = -22x
35 + -22x + x2 = 37 + 5x + -37 + -5x

Reorder the terms:
35 + -22x + x2 = 37 + -37 + 5x + -5x

Combine like terms: 37 + -37 = 0
35 + -22x + x2 = 0 + 5x + -5x
35 + -22x + x2 = 5x + -5x

Combine like terms: 5x + -5x = 0
35 + -22x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-35' to each side of the equation.
35 + -22x + -35 + x2 = 0 + -35

Reorder the terms:
35 + -35 + -22x + x2 = 0 + -35

Combine like terms: 35 + -35 = 0
0 + -22x + x2 = 0 + -35
-22x + x2 = 0 + -35

Combine like terms: 0 + -35 = -35
-22x + x2 = -35

The x term is -22x.  Take half its coefficient (-11).
Square it (121) and add it to both sides.

Add '121' to each side of the equation.
-22x + 121 + x2 = -35 + 121

Reorder the terms:
121 + -22x + x2 = -35 + 121

Combine like terms: -35 + 121 = 86
121 + -22x + x2 = 86

Factor a perfect square on the left side:
(x + -11)(x + -11) = 86

Calculate the square root of the right side: 9.273618495

Break this problem into two subproblems by setting 
(x + -11) equal to 9.273618495 and -9.273618495.

Subproblem 1

x + -11 = 9.273618495 Simplifying x + -11 = 9.273618495 Reorder the terms: -11 + x = 9.273618495 Solving -11 + x = 9.273618495 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '11' to each side of the equation. -11 + 11 + x = 9.273618495 + 11 Combine like terms: -11 + 11 = 0 0 + x = 9.273618495 + 11 x = 9.273618495 + 11 Combine like terms: 9.273618495 + 11 = 20.273618495 x = 20.273618495 Simplifying x = 20.273618495

Subproblem 2

x + -11 = -9.273618495 Simplifying x + -11 = -9.273618495 Reorder the terms: -11 + x = -9.273618495 Solving -11 + x = -9.273618495 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '11' to each side of the equation. -11 + 11 + x = -9.273618495 + 11 Combine like terms: -11 + 11 = 0 0 + x = -9.273618495 + 11 x = -9.273618495 + 11 Combine like terms: -9.273618495 + 11 = 1.726381505 x = 1.726381505 Simplifying x = 1.726381505

Solution

The solution to the problem is based on the solutions from the subproblems. x = {20.273618495, 1.726381505}

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