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Simplifying -8x2 = -48x + 128 Reorder the terms: -8x2 = 128 + -48x Solving -8x2 = 128 + -48x Solving for variable 'x'. Reorder the terms: -128 + 48x + -8x2 = 128 + -48x + -128 + 48x Reorder the terms: -128 + 48x + -8x2 = 128 + -128 + -48x + 48x Combine like terms: 128 + -128 = 0 -128 + 48x + -8x2 = 0 + -48x + 48x -128 + 48x + -8x2 = -48x + 48x Combine like terms: -48x + 48x = 0 -128 + 48x + -8x2 = 0 Factor out the Greatest Common Factor (GCF), '8'. 8(-16 + 6x + -1x2) = 0 Ignore the factor 8.Subproblem 1
Set the factor '(-16 + 6x + -1x2)' equal to zero and attempt to solve: Simplifying -16 + 6x + -1x2 = 0 Solving -16 + 6x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. 16 + -6x + x2 = 0 Move the constant term to the right: Add '-16' to each side of the equation. 16 + -6x + -16 + x2 = 0 + -16 Reorder the terms: 16 + -16 + -6x + x2 = 0 + -16 Combine like terms: 16 + -16 = 0 0 + -6x + x2 = 0 + -16 -6x + x2 = 0 + -16 Combine like terms: 0 + -16 = -16 -6x + x2 = -16 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 = -16 + 9 Reorder the terms: 9 + -6x + x2 = -16 + 9 Combine like terms: -16 + 9 = -7 9 + -6x + x2 = -7 Factor a perfect square on the left side: (x + -3)(x + -3) = -7 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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