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Simplifying 70 + -16x + 4x2 = 0 Solving 70 + -16x + 4x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '2'. 2(35 + -8x + 2x2) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(35 + -8x + 2x2)' equal to zero and attempt to solve: Simplifying 35 + -8x + 2x2 = 0 Solving 35 + -8x + 2x2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. 17.5 + -4x + x2 = 0 Move the constant term to the right: Add '-17.5' to each side of the equation. 17.5 + -4x + -17.5 + x2 = 0 + -17.5 Reorder the terms: 17.5 + -17.5 + -4x + x2 = 0 + -17.5 Combine like terms: 17.5 + -17.5 = 0.0 0.0 + -4x + x2 = 0 + -17.5 -4x + x2 = 0 + -17.5 Combine like terms: 0 + -17.5 = -17.5 -4x + x2 = -17.5 The x term is -4x. Take half its coefficient (-2). Square it (4) and add it to both sides. Add '4' to each side of the equation. -4x + 4 + x2 = -17.5 + 4 Reorder the terms: 4 + -4x + x2 = -17.5 + 4 Combine like terms: -17.5 + 4 = -13.5 4 + -4x + x2 = -13.5 Factor a perfect square on the left side: (x + -2)(x + -2) = -13.5 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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