2x^2+47x-63=0

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Solution for 2x^2+47x-63=0 equation:


Simplifying
2x2 + 47x + -63 = 0

Reorder the terms:
-63 + 47x + 2x2 = 0

Solving
-63 + 47x + 2x2 = 0

Solving for variable 'x'.

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

Divide each side by '2'.
-31.5 + 23.5x + x2 = 0

Move the constant term to the right:

Add '31.5' to each side of the equation.
-31.5 + 23.5x + 31.5 + x2 = 0 + 31.5

Reorder the terms:
-31.5 + 31.5 + 23.5x + x2 = 0 + 31.5

Combine like terms: -31.5 + 31.5 = 0.0
0.0 + 23.5x + x2 = 0 + 31.5
23.5x + x2 = 0 + 31.5

Combine like terms: 0 + 31.5 = 31.5
23.5x + x2 = 31.5

The x term is 23.5x.  Take half its coefficient (11.75).
Square it (138.0625) and add it to both sides.

Add '138.0625' to each side of the equation.
23.5x + 138.0625 + x2 = 31.5 + 138.0625

Reorder the terms:
138.0625 + 23.5x + x2 = 31.5 + 138.0625

Combine like terms: 31.5 + 138.0625 = 169.5625
138.0625 + 23.5x + x2 = 169.5625

Factor a perfect square on the left side:
(x + 11.75)(x + 11.75) = 169.5625

Calculate the square root of the right side: 13.021616643

Break this problem into two subproblems by setting 
(x + 11.75) equal to 13.021616643 and -13.021616643.

Subproblem 1

x + 11.75 = 13.021616643 Simplifying x + 11.75 = 13.021616643 Reorder the terms: 11.75 + x = 13.021616643 Solving 11.75 + x = 13.021616643 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-11.75' to each side of the equation. 11.75 + -11.75 + x = 13.021616643 + -11.75 Combine like terms: 11.75 + -11.75 = 0.00 0.00 + x = 13.021616643 + -11.75 x = 13.021616643 + -11.75 Combine like terms: 13.021616643 + -11.75 = 1.271616643 x = 1.271616643 Simplifying x = 1.271616643

Subproblem 2

x + 11.75 = -13.021616643 Simplifying x + 11.75 = -13.021616643 Reorder the terms: 11.75 + x = -13.021616643 Solving 11.75 + x = -13.021616643 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-11.75' to each side of the equation. 11.75 + -11.75 + x = -13.021616643 + -11.75 Combine like terms: 11.75 + -11.75 = 0.00 0.00 + x = -13.021616643 + -11.75 x = -13.021616643 + -11.75 Combine like terms: -13.021616643 + -11.75 = -24.771616643 x = -24.771616643 Simplifying x = -24.771616643

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.271616643, -24.771616643}

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