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Simplifying 12x2 + -8x + 120 = 0 Reorder the terms: 120 + -8x + 12x2 = 0 Solving 120 + -8x + 12x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '4'. 4(30 + -2x + 3x2) = 0 Ignore the factor 4.Subproblem 1
Set the factor '(30 + -2x + 3x2)' equal to zero and attempt to solve: Simplifying 30 + -2x + 3x2 = 0 Solving 30 + -2x + 3x2 = 0 Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. 10 + -0.6666666667x + x2 = 0 Move the constant term to the right: Add '-10' to each side of the equation. 10 + -0.6666666667x + -10 + x2 = 0 + -10 Reorder the terms: 10 + -10 + -0.6666666667x + x2 = 0 + -10 Combine like terms: 10 + -10 = 0 0 + -0.6666666667x + x2 = 0 + -10 -0.6666666667x + x2 = 0 + -10 Combine like terms: 0 + -10 = -10 -0.6666666667x + x2 = -10 The x term is -0.6666666667x. Take half its coefficient (-0.3333333334). Square it (0.1111111112) and add it to both sides. Add '0.1111111112' to each side of the equation. -0.6666666667x + 0.1111111112 + x2 = -10 + 0.1111111112 Reorder the terms: 0.1111111112 + -0.6666666667x + x2 = -10 + 0.1111111112 Combine like terms: -10 + 0.1111111112 = -9.8888888888 0.1111111112 + -0.6666666667x + x2 = -9.8888888888 Factor a perfect square on the left side: (x + -0.3333333334)(x + -0.3333333334) = -9.8888888888 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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