-13x^2-5x-14+14x^2-20x+8=

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Solution for -13x^2-5x-14+14x^2-20x+8= equation:


Simplifying
-13x2 + -5x + -14 + 14x2 + -20x + 8 = 0

Reorder the terms:
-14 + 8 + -5x + -20x + -13x2 + 14x2 = 0

Combine like terms: -14 + 8 = -6
-6 + -5x + -20x + -13x2 + 14x2 = 0

Combine like terms: -5x + -20x = -25x
-6 + -25x + -13x2 + 14x2 = 0

Combine like terms: -13x2 + 14x2 = 1x2
-6 + -25x + 1x2 = 0

Solving
-6 + -25x + 1x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '6' to each side of the equation.
-6 + -25x + 6 + x2 = 0 + 6

Reorder the terms:
-6 + 6 + -25x + x2 = 0 + 6

Combine like terms: -6 + 6 = 0
0 + -25x + x2 = 0 + 6
-25x + x2 = 0 + 6

Combine like terms: 0 + 6 = 6
-25x + x2 = 6

The x term is -25x.  Take half its coefficient (-12.5).
Square it (156.25) and add it to both sides.

Add '156.25' to each side of the equation.
-25x + 156.25 + x2 = 6 + 156.25

Reorder the terms:
156.25 + -25x + x2 = 6 + 156.25

Combine like terms: 6 + 156.25 = 162.25
156.25 + -25x + x2 = 162.25

Factor a perfect square on the left side:
(x + -12.5)(x + -12.5) = 162.25

Calculate the square root of the right side: 12.737739203

Break this problem into two subproblems by setting 
(x + -12.5) equal to 12.737739203 and -12.737739203.

Subproblem 1

x + -12.5 = 12.737739203 Simplifying x + -12.5 = 12.737739203 Reorder the terms: -12.5 + x = 12.737739203 Solving -12.5 + x = 12.737739203 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '12.5' to each side of the equation. -12.5 + 12.5 + x = 12.737739203 + 12.5 Combine like terms: -12.5 + 12.5 = 0.0 0.0 + x = 12.737739203 + 12.5 x = 12.737739203 + 12.5 Combine like terms: 12.737739203 + 12.5 = 25.237739203 x = 25.237739203 Simplifying x = 25.237739203

Subproblem 2

x + -12.5 = -12.737739203 Simplifying x + -12.5 = -12.737739203 Reorder the terms: -12.5 + x = -12.737739203 Solving -12.5 + x = -12.737739203 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '12.5' to each side of the equation. -12.5 + 12.5 + x = -12.737739203 + 12.5 Combine like terms: -12.5 + 12.5 = 0.0 0.0 + x = -12.737739203 + 12.5 x = -12.737739203 + 12.5 Combine like terms: -12.737739203 + 12.5 = -0.237739203 x = -0.237739203 Simplifying x = -0.237739203

Solution

The solution to the problem is based on the solutions from the subproblems. x = {25.237739203, -0.237739203}

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