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Simplifying 2x2 + -6x + 90 = 0 Reorder the terms: 90 + -6x + 2x2 = 0 Solving 90 + -6x + 2x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '2'. 2(45 + -3x + x2) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(45 + -3x + x2)' equal to zero and attempt to solve: Simplifying 45 + -3x + x2 = 0 Solving 45 + -3x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-45' to each side of the equation. 45 + -3x + -45 + x2 = 0 + -45 Reorder the terms: 45 + -45 + -3x + x2 = 0 + -45 Combine like terms: 45 + -45 = 0 0 + -3x + x2 = 0 + -45 -3x + x2 = 0 + -45 Combine like terms: 0 + -45 = -45 -3x + x2 = -45 The x term is -3x. Take half its coefficient (-1.5). Square it (2.25) and add it to both sides. Add '2.25' to each side of the equation. -3x + 2.25 + x2 = -45 + 2.25 Reorder the terms: 2.25 + -3x + x2 = -45 + 2.25 Combine like terms: -45 + 2.25 = -42.75 2.25 + -3x + x2 = -42.75 Factor a perfect square on the left side: (x + -1.5)(x + -1.5) = -42.75 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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