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Simplifying -3x2 + -36x + -156 = 0 Reorder the terms: -156 + -36x + -3x2 = 0 Solving -156 + -36x + -3x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '-3'. -3(52 + 12x + x2) = 0 Ignore the factor -3.Subproblem 1
Set the factor '(52 + 12x + x2)' equal to zero and attempt to solve: Simplifying 52 + 12x + x2 = 0 Solving 52 + 12x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-52' to each side of the equation. 52 + 12x + -52 + x2 = 0 + -52 Reorder the terms: 52 + -52 + 12x + x2 = 0 + -52 Combine like terms: 52 + -52 = 0 0 + 12x + x2 = 0 + -52 12x + x2 = 0 + -52 Combine like terms: 0 + -52 = -52 12x + x2 = -52 The x term is 12x. Take half its coefficient (6). Square it (36) and add it to both sides. Add '36' to each side of the equation. 12x + 36 + x2 = -52 + 36 Reorder the terms: 36 + 12x + x2 = -52 + 36 Combine like terms: -52 + 36 = -16 36 + 12x + x2 = -16 Factor a perfect square on the left side: (x + 6)(x + 6) = -16 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.
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