x^2-4x=2x+35

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Solution for x^2-4x=2x+35 equation:


Simplifying
x2 + -4x = 2x + 35

Reorder the terms:
-4x + x2 = 2x + 35

Reorder the terms:
-4x + x2 = 35 + 2x

Solving
-4x + x2 = 35 + 2x

Solving for variable 'x'.

Reorder the terms:
-35 + -4x + -2x + x2 = 35 + 2x + -35 + -2x

Combine like terms: -4x + -2x = -6x
-35 + -6x + x2 = 35 + 2x + -35 + -2x

Reorder the terms:
-35 + -6x + x2 = 35 + -35 + 2x + -2x

Combine like terms: 35 + -35 = 0
-35 + -6x + x2 = 0 + 2x + -2x
-35 + -6x + x2 = 2x + -2x

Combine like terms: 2x + -2x = 0
-35 + -6x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '35' to each side of the equation.
-35 + -6x + 35 + x2 = 0 + 35

Reorder the terms:
-35 + 35 + -6x + x2 = 0 + 35

Combine like terms: -35 + 35 = 0
0 + -6x + x2 = 0 + 35
-6x + x2 = 0 + 35

Combine like terms: 0 + 35 = 35
-6x + x2 = 35

The x term is -6x.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6x + 9 + x2 = 35 + 9

Reorder the terms:
9 + -6x + x2 = 35 + 9

Combine like terms: 35 + 9 = 44
9 + -6x + x2 = 44

Factor a perfect square on the left side:
(x + -3)(x + -3) = 44

Calculate the square root of the right side: 6.633249581

Break this problem into two subproblems by setting 
(x + -3) equal to 6.633249581 and -6.633249581.

Subproblem 1

x + -3 = 6.633249581 Simplifying x + -3 = 6.633249581 Reorder the terms: -3 + x = 6.633249581 Solving -3 + x = 6.633249581 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x = 6.633249581 + 3 Combine like terms: -3 + 3 = 0 0 + x = 6.633249581 + 3 x = 6.633249581 + 3 Combine like terms: 6.633249581 + 3 = 9.633249581 x = 9.633249581 Simplifying x = 9.633249581

Subproblem 2

x + -3 = -6.633249581 Simplifying x + -3 = -6.633249581 Reorder the terms: -3 + x = -6.633249581 Solving -3 + x = -6.633249581 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x = -6.633249581 + 3 Combine like terms: -3 + 3 = 0 0 + x = -6.633249581 + 3 x = -6.633249581 + 3 Combine like terms: -6.633249581 + 3 = -3.633249581 x = -3.633249581 Simplifying x = -3.633249581

Solution

The solution to the problem is based on the solutions from the subproblems. x = {9.633249581, -3.633249581}

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