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Simplifying -16x2 + 128x + 4 = 0 Reorder the terms: 4 + 128x + -16x2 = 0 Solving 4 + 128x + -16x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '4'. 4(1 + 32x + -4x2) = 0 Ignore the factor 4.Subproblem 1
Set the factor '(1 + 32x + -4x2)' equal to zero and attempt to solve: Simplifying 1 + 32x + -4x2 = 0 Solving 1 + 32x + -4x2 = 0 Begin completing the square. Divide all terms by -4 the coefficient of the squared term: Divide each side by '-4'. -0.25 + -8x + x2 = 0 Move the constant term to the right: Add '0.25' to each side of the equation. -0.25 + -8x + 0.25 + x2 = 0 + 0.25 Reorder the terms: -0.25 + 0.25 + -8x + x2 = 0 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + -8x + x2 = 0 + 0.25 -8x + x2 = 0 + 0.25 Combine like terms: 0 + 0.25 = 0.25 -8x + x2 = 0.25 The x term is -8x. Take half its coefficient (-4). Square it (16) and add it to both sides. Add '16' to each side of the equation. -8x + 16 + x2 = 0.25 + 16 Reorder the terms: 16 + -8x + x2 = 0.25 + 16 Combine like terms: 0.25 + 16 = 16.25 16 + -8x + x2 = 16.25 Factor a perfect square on the left side: (x + -4)(x + -4) = 16.25 Calculate the square root of the right side: 4.031128874 Break this problem into two subproblems by setting (x + -4) equal to 4.031128874 and -4.031128874.Subproblem 1
x + -4 = 4.031128874 Simplifying x + -4 = 4.031128874 Reorder the terms: -4 + x = 4.031128874 Solving -4 + x = 4.031128874 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = 4.031128874 + 4 Combine like terms: -4 + 4 = 0 0 + x = 4.031128874 + 4 x = 4.031128874 + 4 Combine like terms: 4.031128874 + 4 = 8.031128874 x = 8.031128874 Simplifying x = 8.031128874Subproblem 2
x + -4 = -4.031128874 Simplifying x + -4 = -4.031128874 Reorder the terms: -4 + x = -4.031128874 Solving -4 + x = -4.031128874 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = -4.031128874 + 4 Combine like terms: -4 + 4 = 0 0 + x = -4.031128874 + 4 x = -4.031128874 + 4 Combine like terms: -4.031128874 + 4 = -0.031128874 x = -0.031128874 Simplifying x = -0.031128874Solution
The solution to the problem is based on the solutions from the subproblems. x = {8.031128874, -0.031128874}Solution
x = {8.031128874, -0.031128874}
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