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Simplifying -16x2 + 64x + -480 = 0 Reorder the terms: -480 + 64x + -16x2 = 0 Solving -480 + 64x + -16x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '16'. 16(-30 + 4x + -1x2) = 0 Ignore the factor 16.Subproblem 1
Set the factor '(-30 + 4x + -1x2)' equal to zero and attempt to solve: Simplifying -30 + 4x + -1x2 = 0 Solving -30 + 4x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. 30 + -4x + x2 = 0 Move the constant term to the right: Add '-30' to each side of the equation. 30 + -4x + -30 + x2 = 0 + -30 Reorder the terms: 30 + -30 + -4x + x2 = 0 + -30 Combine like terms: 30 + -30 = 0 0 + -4x + x2 = 0 + -30 -4x + x2 = 0 + -30 Combine like terms: 0 + -30 = -30 -4x + x2 = -30 The x term is -4x. Take half its coefficient (-2). Square it (4) and add it to both sides. Add '4' to each side of the equation. -4x + 4 + x2 = -30 + 4 Reorder the terms: 4 + -4x + x2 = -30 + 4 Combine like terms: -30 + 4 = -26 4 + -4x + x2 = -26 Factor a perfect square on the left side: (x + -2)(x + -2) = -26 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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