2x^2-10=4x+93

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Solution for 2x^2-10=4x+93 equation:


Simplifying
2x2 + -10 = 4x + 93

Reorder the terms:
-10 + 2x2 = 4x + 93

Reorder the terms:
-10 + 2x2 = 93 + 4x

Solving
-10 + 2x2 = 93 + 4x

Solving for variable 'x'.

Reorder the terms:
-10 + -93 + -4x + 2x2 = 93 + 4x + -93 + -4x

Combine like terms: -10 + -93 = -103
-103 + -4x + 2x2 = 93 + 4x + -93 + -4x

Reorder the terms:
-103 + -4x + 2x2 = 93 + -93 + 4x + -4x

Combine like terms: 93 + -93 = 0
-103 + -4x + 2x2 = 0 + 4x + -4x
-103 + -4x + 2x2 = 4x + -4x

Combine like terms: 4x + -4x = 0
-103 + -4x + 2x2 = 0

Begin completing the square.  Divide all terms by
2 the coefficient of the squared term: 

Divide each side by '2'.
-51.5 + -2x + x2 = 0

Move the constant term to the right:

Add '51.5' to each side of the equation.
-51.5 + -2x + 51.5 + x2 = 0 + 51.5

Reorder the terms:
-51.5 + 51.5 + -2x + x2 = 0 + 51.5

Combine like terms: -51.5 + 51.5 = 0.0
0.0 + -2x + x2 = 0 + 51.5
-2x + x2 = 0 + 51.5

Combine like terms: 0 + 51.5 = 51.5
-2x + x2 = 51.5

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 = 51.5 + 1

Reorder the terms:
1 + -2x + x2 = 51.5 + 1

Combine like terms: 51.5 + 1 = 52.5
1 + -2x + x2 = 52.5

Factor a perfect square on the left side:
(x + -1)(x + -1) = 52.5

Calculate the square root of the right side: 7.245688373

Break this problem into two subproblems by setting 
(x + -1) equal to 7.245688373 and -7.245688373.

Subproblem 1

x + -1 = 7.245688373 Simplifying x + -1 = 7.245688373 Reorder the terms: -1 + x = 7.245688373 Solving -1 + x = 7.245688373 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 = 7.245688373 + 1 Combine like terms: -1 + 1 = 0 0 + x = 7.245688373 + 1 x = 7.245688373 + 1 Combine like terms: 7.245688373 + 1 = 8.245688373 x = 8.245688373 Simplifying x = 8.245688373

Subproblem 2

x + -1 = -7.245688373 Simplifying x + -1 = -7.245688373 Reorder the terms: -1 + x = -7.245688373 Solving -1 + x = -7.245688373 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 = -7.245688373 + 1 Combine like terms: -1 + 1 = 0 0 + x = -7.245688373 + 1 x = -7.245688373 + 1 Combine like terms: -7.245688373 + 1 = -6.245688373 x = -6.245688373 Simplifying x = -6.245688373

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.245688373, -6.245688373}

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