(x+2)(x-91)=182

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Solution for (x+2)(x-91)=182 equation:


Simplifying
(x + 2)(x + -91) = 182

Reorder the terms:
(2 + x)(x + -91) = 182

Reorder the terms:
(2 + x)(-91 + x) = 182

Multiply (2 + x) * (-91 + x)
(2(-91 + x) + x(-91 + x)) = 182
((-91 * 2 + x * 2) + x(-91 + x)) = 182
((-182 + 2x) + x(-91 + x)) = 182
(-182 + 2x + (-91 * x + x * x)) = 182
(-182 + 2x + (-91x + x2)) = 182

Combine like terms: 2x + -91x = -89x
(-182 + -89x + x2) = 182

Solving
-182 + -89x + x2 = 182

Solving for variable 'x'.

Reorder the terms:
-182 + -182 + -89x + x2 = 182 + -182

Combine like terms: -182 + -182 = -364
-364 + -89x + x2 = 182 + -182

Combine like terms: 182 + -182 = 0
-364 + -89x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '364' to each side of the equation.
-364 + -89x + 364 + x2 = 0 + 364

Reorder the terms:
-364 + 364 + -89x + x2 = 0 + 364

Combine like terms: -364 + 364 = 0
0 + -89x + x2 = 0 + 364
-89x + x2 = 0 + 364

Combine like terms: 0 + 364 = 364
-89x + x2 = 364

The x term is -89x.  Take half its coefficient (-44.5).
Square it (1980.25) and add it to both sides.

Add '1980.25' to each side of the equation.
-89x + 1980.25 + x2 = 364 + 1980.25

Reorder the terms:
1980.25 + -89x + x2 = 364 + 1980.25

Combine like terms: 364 + 1980.25 = 2344.25
1980.25 + -89x + x2 = 2344.25

Factor a perfect square on the left side:
(x + -44.5)(x + -44.5) = 2344.25

Calculate the square root of the right side: 48.41745553

Break this problem into two subproblems by setting 
(x + -44.5) equal to 48.41745553 and -48.41745553.

Subproblem 1

x + -44.5 = 48.41745553 Simplifying x + -44.5 = 48.41745553 Reorder the terms: -44.5 + x = 48.41745553 Solving -44.5 + x = 48.41745553 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '44.5' to each side of the equation. -44.5 + 44.5 + x = 48.41745553 + 44.5 Combine like terms: -44.5 + 44.5 = 0.0 0.0 + x = 48.41745553 + 44.5 x = 48.41745553 + 44.5 Combine like terms: 48.41745553 + 44.5 = 92.91745553 x = 92.91745553 Simplifying x = 92.91745553

Subproblem 2

x + -44.5 = -48.41745553 Simplifying x + -44.5 = -48.41745553 Reorder the terms: -44.5 + x = -48.41745553 Solving -44.5 + x = -48.41745553 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '44.5' to each side of the equation. -44.5 + 44.5 + x = -48.41745553 + 44.5 Combine like terms: -44.5 + 44.5 = 0.0 0.0 + x = -48.41745553 + 44.5 x = -48.41745553 + 44.5 Combine like terms: -48.41745553 + 44.5 = -3.91745553 x = -3.91745553 Simplifying x = -3.91745553

Solution

The solution to the problem is based on the solutions from the subproblems. x = {92.91745553, -3.91745553}

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