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Simplifying 18x2 + -16x + 4 = 0 Reorder the terms: 4 + -16x + 18x2 = 0 Solving 4 + -16x + 18x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '2'. 2(2 + -8x + 9x2) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(2 + -8x + 9x2)' equal to zero and attempt to solve: Simplifying 2 + -8x + 9x2 = 0 Solving 2 + -8x + 9x2 = 0 Begin completing the square. Divide all terms by 9 the coefficient of the squared term: Divide each side by '9'. 0.2222222222 + -0.8888888889x + x2 = 0 Move the constant term to the right: Add '-0.2222222222' to each side of the equation. 0.2222222222 + -0.8888888889x + -0.2222222222 + x2 = 0 + -0.2222222222 Reorder the terms: 0.2222222222 + -0.2222222222 + -0.8888888889x + x2 = 0 + -0.2222222222 Combine like terms: 0.2222222222 + -0.2222222222 = 0.0000000000 0.0000000000 + -0.8888888889x + x2 = 0 + -0.2222222222 -0.8888888889x + x2 = 0 + -0.2222222222 Combine like terms: 0 + -0.2222222222 = -0.2222222222 -0.8888888889x + x2 = -0.2222222222 The x term is -0.8888888889x. Take half its coefficient (-0.4444444445). Square it (0.1975308642) and add it to both sides. Add '0.1975308642' to each side of the equation. -0.8888888889x + 0.1975308642 + x2 = -0.2222222222 + 0.1975308642 Reorder the terms: 0.1975308642 + -0.8888888889x + x2 = -0.2222222222 + 0.1975308642 Combine like terms: -0.2222222222 + 0.1975308642 = -0.024691358 0.1975308642 + -0.8888888889x + x2 = -0.024691358 Factor a perfect square on the left side: (x + -0.4444444445)(x + -0.4444444445) = -0.024691358 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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