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Simplifying 27x2 + -72x + 192 = 0 Reorder the terms: 192 + -72x + 27x2 = 0 Solving 192 + -72x + 27x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '3'. 3(64 + -24x + 9x2) = 0 Ignore the factor 3.Subproblem 1
Set the factor '(64 + -24x + 9x2)' equal to zero and attempt to solve: Simplifying 64 + -24x + 9x2 = 0 Solving 64 + -24x + 9x2 = 0 Begin completing the square. Divide all terms by 9 the coefficient of the squared term: Divide each side by '9'. 7.111111111 + -2.666666667x + x2 = 0 Move the constant term to the right: Add '-7.111111111' to each side of the equation. 7.111111111 + -2.666666667x + -7.111111111 + x2 = 0 + -7.111111111 Reorder the terms: 7.111111111 + -7.111111111 + -2.666666667x + x2 = 0 + -7.111111111 Combine like terms: 7.111111111 + -7.111111111 = 0.000000000 0.000000000 + -2.666666667x + x2 = 0 + -7.111111111 -2.666666667x + x2 = 0 + -7.111111111 Combine like terms: 0 + -7.111111111 = -7.111111111 -2.666666667x + x2 = -7.111111111 The x term is -2.666666667x. Take half its coefficient (-1.333333334). Square it (1.777777780) and add it to both sides. Add '1.777777780' to each side of the equation. -2.666666667x + 1.777777780 + x2 = -7.111111111 + 1.777777780 Reorder the terms: 1.777777780 + -2.666666667x + x2 = -7.111111111 + 1.777777780 Combine like terms: -7.111111111 + 1.777777780 = -5.333333331 1.777777780 + -2.666666667x + x2 = -5.333333331 Factor a perfect square on the left side: (x + -1.333333334)(x + -1.333333334) = -5.333333331 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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