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Simplifying 2(x2 + 2x + -178) = 0 Reorder the terms: 2(-178 + 2x + x2) = 0 (-178 * 2 + 2x * 2 + x2 * 2) = 0 (-356 + 4x + 2x2) = 0 Solving -356 + 4x + 2x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '2'. 2(-178 + 2x + x2) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(-178 + 2x + x2)' equal to zero and attempt to solve: Simplifying -178 + 2x + x2 = 0 Solving -178 + 2x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '178' to each side of the equation. -178 + 2x + 178 + x2 = 0 + 178 Reorder the terms: -178 + 178 + 2x + x2 = 0 + 178 Combine like terms: -178 + 178 = 0 0 + 2x + x2 = 0 + 178 2x + x2 = 0 + 178 Combine like terms: 0 + 178 = 178 2x + x2 = 178 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 = 178 + 1 Reorder the terms: 1 + 2x + x2 = 178 + 1 Combine like terms: 178 + 1 = 179 1 + 2x + x2 = 179 Factor a perfect square on the left side: (x + 1)(x + 1) = 179 Calculate the square root of the right side: 13.37908816 Break this problem into two subproblems by setting (x + 1) equal to 13.37908816 and -13.37908816.Subproblem 1
x + 1 = 13.37908816 Simplifying x + 1 = 13.37908816 Reorder the terms: 1 + x = 13.37908816 Solving 1 + x = 13.37908816 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 = 13.37908816 + -1 Combine like terms: 1 + -1 = 0 0 + x = 13.37908816 + -1 x = 13.37908816 + -1 Combine like terms: 13.37908816 + -1 = 12.37908816 x = 12.37908816 Simplifying x = 12.37908816Subproblem 2
x + 1 = -13.37908816 Simplifying x + 1 = -13.37908816 Reorder the terms: 1 + x = -13.37908816 Solving 1 + x = -13.37908816 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 = -13.37908816 + -1 Combine like terms: 1 + -1 = 0 0 + x = -13.37908816 + -1 x = -13.37908816 + -1 Combine like terms: -13.37908816 + -1 = -14.37908816 x = -14.37908816 Simplifying x = -14.37908816Solution
The solution to the problem is based on the solutions from the subproblems. x = {12.37908816, -14.37908816}Solution
x = {12.37908816, -14.37908816}
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