=-2x^2-20x+44

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Solution for =-2x^2-20x+44 equation:


Simplifying
0 = -2x2 + -20x + 44

Reorder the terms:
0 = 44 + -20x + -2x2

Solving
0 = 44 + -20x + -2x2

Solving for variable 'x'.

Combine like terms: 0 + -44 = -44
-44 + 20x + 2x2 = 44 + -20x + -2x2 + -44 + 20x + 2x2

Reorder the terms:
-44 + 20x + 2x2 = 44 + -44 + -20x + 20x + -2x2 + 2x2

Combine like terms: 44 + -44 = 0
-44 + 20x + 2x2 = 0 + -20x + 20x + -2x2 + 2x2
-44 + 20x + 2x2 = -20x + 20x + -2x2 + 2x2

Combine like terms: -20x + 20x = 0
-44 + 20x + 2x2 = 0 + -2x2 + 2x2
-44 + 20x + 2x2 = -2x2 + 2x2

Combine like terms: -2x2 + 2x2 = 0
-44 + 20x + 2x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-22 + 10x + x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-22 + 10x + x2)' equal to zero and attempt to solve: Simplifying -22 + 10x + x2 = 0 Solving -22 + 10x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '22' to each side of the equation. -22 + 10x + 22 + x2 = 0 + 22 Reorder the terms: -22 + 22 + 10x + x2 = 0 + 22 Combine like terms: -22 + 22 = 0 0 + 10x + x2 = 0 + 22 10x + x2 = 0 + 22 Combine like terms: 0 + 22 = 22 10x + x2 = 22 The x term is 10x. Take half its coefficient (5). Square it (25) and add it to both sides. Add '25' to each side of the equation. 10x + 25 + x2 = 22 + 25 Reorder the terms: 25 + 10x + x2 = 22 + 25 Combine like terms: 22 + 25 = 47 25 + 10x + x2 = 47 Factor a perfect square on the left side: (x + 5)(x + 5) = 47 Calculate the square root of the right side: 6.8556546 Break this problem into two subproblems by setting (x + 5) equal to 6.8556546 and -6.8556546.

Subproblem 1

x + 5 = 6.8556546 Simplifying x + 5 = 6.8556546 Reorder the terms: 5 + x = 6.8556546 Solving 5 + x = 6.8556546 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = 6.8556546 + -5 Combine like terms: 5 + -5 = 0 0 + x = 6.8556546 + -5 x = 6.8556546 + -5 Combine like terms: 6.8556546 + -5 = 1.8556546 x = 1.8556546 Simplifying x = 1.8556546

Subproblem 2

x + 5 = -6.8556546 Simplifying x + 5 = -6.8556546 Reorder the terms: 5 + x = -6.8556546 Solving 5 + x = -6.8556546 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = -6.8556546 + -5 Combine like terms: 5 + -5 = 0 0 + x = -6.8556546 + -5 x = -6.8556546 + -5 Combine like terms: -6.8556546 + -5 = -11.8556546 x = -11.8556546 Simplifying x = -11.8556546

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.8556546, -11.8556546}

Solution

x = {1.8556546, -11.8556546}

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