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Simplifying 2x2 + 12x + -180 = 0 Reorder the terms: -180 + 12x + 2x2 = 0 Solving -180 + 12x + 2x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '2'. 2(-90 + 6x + x2) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(-90 + 6x + x2)' equal to zero and attempt to solve: Simplifying -90 + 6x + x2 = 0 Solving -90 + 6x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '90' to each side of the equation. -90 + 6x + 90 + x2 = 0 + 90 Reorder the terms: -90 + 90 + 6x + x2 = 0 + 90 Combine like terms: -90 + 90 = 0 0 + 6x + x2 = 0 + 90 6x + x2 = 0 + 90 Combine like terms: 0 + 90 = 90 6x + x2 = 90 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 = 90 + 9 Reorder the terms: 9 + 6x + x2 = 90 + 9 Combine like terms: 90 + 9 = 99 9 + 6x + x2 = 99 Factor a perfect square on the left side: (x + 3)(x + 3) = 99 Calculate the square root of the right side: 9.949874371 Break this problem into two subproblems by setting (x + 3) equal to 9.949874371 and -9.949874371.Subproblem 1
x + 3 = 9.949874371 Simplifying x + 3 = 9.949874371 Reorder the terms: 3 + x = 9.949874371 Solving 3 + x = 9.949874371 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 = 9.949874371 + -3 Combine like terms: 3 + -3 = 0 0 + x = 9.949874371 + -3 x = 9.949874371 + -3 Combine like terms: 9.949874371 + -3 = 6.949874371 x = 6.949874371 Simplifying x = 6.949874371Subproblem 2
x + 3 = -9.949874371 Simplifying x + 3 = -9.949874371 Reorder the terms: 3 + x = -9.949874371 Solving 3 + x = -9.949874371 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 = -9.949874371 + -3 Combine like terms: 3 + -3 = 0 0 + x = -9.949874371 + -3 x = -9.949874371 + -3 Combine like terms: -9.949874371 + -3 = -12.949874371 x = -12.949874371 Simplifying x = -12.949874371Solution
The solution to the problem is based on the solutions from the subproblems. x = {6.949874371, -12.949874371}Solution
x = {6.949874371, -12.949874371}
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