(x-7+5)x-7=36

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Solution for (x-7+5)x-7=36 equation:


Simplifying
(x + -7 + 5) * x + -7 = 36

Reorder the terms:
(-7 + 5 + x) * x + -7 = 36

Combine like terms: -7 + 5 = -2
(-2 + x) * x + -7 = 36

Reorder the terms for easier multiplication:
x(-2 + x) + -7 = 36
(-2 * x + x * x) + -7 = 36
(-2x + x2) + -7 = 36

Reorder the terms:
-7 + -2x + x2 = 36

Solving
-7 + -2x + x2 = 36

Solving for variable 'x'.

Reorder the terms:
-7 + -36 + -2x + x2 = 36 + -36

Combine like terms: -7 + -36 = -43
-43 + -2x + x2 = 36 + -36

Combine like terms: 36 + -36 = 0
-43 + -2x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '43' to each side of the equation.
-43 + -2x + 43 + x2 = 0 + 43

Reorder the terms:
-43 + 43 + -2x + x2 = 0 + 43

Combine like terms: -43 + 43 = 0
0 + -2x + x2 = 0 + 43
-2x + x2 = 0 + 43

Combine like terms: 0 + 43 = 43
-2x + x2 = 43

The x term is -2x.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2x + 1 + x2 = 43 + 1

Reorder the terms:
1 + -2x + x2 = 43 + 1

Combine like terms: 43 + 1 = 44
1 + -2x + x2 = 44

Factor a perfect square on the left side:
(x + -1)(x + -1) = 44

Calculate the square root of the right side: 6.633249581

Break this problem into two subproblems by setting 
(x + -1) equal to 6.633249581 and -6.633249581.

Subproblem 1

x + -1 = 6.633249581 Simplifying x + -1 = 6.633249581 Reorder the terms: -1 + x = 6.633249581 Solving -1 + x = 6.633249581 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = 6.633249581 + 1 Combine like terms: -1 + 1 = 0 0 + x = 6.633249581 + 1 x = 6.633249581 + 1 Combine like terms: 6.633249581 + 1 = 7.633249581 x = 7.633249581 Simplifying x = 7.633249581

Subproblem 2

x + -1 = -6.633249581 Simplifying x + -1 = -6.633249581 Reorder the terms: -1 + x = -6.633249581 Solving -1 + x = -6.633249581 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = -6.633249581 + 1 Combine like terms: -1 + 1 = 0 0 + x = -6.633249581 + 1 x = -6.633249581 + 1 Combine like terms: -6.633249581 + 1 = -5.633249581 x = -5.633249581 Simplifying x = -5.633249581

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.633249581, -5.633249581}

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