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Simplifying 16x2 + 40x + 50 = 0 Reorder the terms: 50 + 40x + 16x2 = 0 Solving 50 + 40x + 16x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '2'. 2(25 + 20x + 8x2) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(25 + 20x + 8x2)' equal to zero and attempt to solve: Simplifying 25 + 20x + 8x2 = 0 Solving 25 + 20x + 8x2 = 0 Begin completing the square. Divide all terms by 8 the coefficient of the squared term: Divide each side by '8'. 3.125 + 2.5x + x2 = 0 Move the constant term to the right: Add '-3.125' to each side of the equation. 3.125 + 2.5x + -3.125 + x2 = 0 + -3.125 Reorder the terms: 3.125 + -3.125 + 2.5x + x2 = 0 + -3.125 Combine like terms: 3.125 + -3.125 = 0.000 0.000 + 2.5x + x2 = 0 + -3.125 2.5x + x2 = 0 + -3.125 Combine like terms: 0 + -3.125 = -3.125 2.5x + x2 = -3.125 The x term is 2.5x. Take half its coefficient (1.25). Square it (1.5625) and add it to both sides. Add '1.5625' to each side of the equation. 2.5x + 1.5625 + x2 = -3.125 + 1.5625 Reorder the terms: 1.5625 + 2.5x + x2 = -3.125 + 1.5625 Combine like terms: -3.125 + 1.5625 = -1.5625 1.5625 + 2.5x + x2 = -1.5625 Factor a perfect square on the left side: (x + 1.25)(x + 1.25) = -1.5625 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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