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Simplifying -16x2 + 80x + 4 = 0 Reorder the terms: 4 + 80x + -16x2 = 0 Solving 4 + 80x + -16x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '4'. 4(1 + 20x + -4x2) = 0 Ignore the factor 4.Subproblem 1
Set the factor '(1 + 20x + -4x2)' equal to zero and attempt to solve: Simplifying 1 + 20x + -4x2 = 0 Solving 1 + 20x + -4x2 = 0 Begin completing the square. Divide all terms by -4 the coefficient of the squared term: Divide each side by '-4'. -0.25 + -5x + x2 = 0 Move the constant term to the right: Add '0.25' to each side of the equation. -0.25 + -5x + 0.25 + x2 = 0 + 0.25 Reorder the terms: -0.25 + 0.25 + -5x + x2 = 0 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + -5x + x2 = 0 + 0.25 -5x + x2 = 0 + 0.25 Combine like terms: 0 + 0.25 = 0.25 -5x + x2 = 0.25 The x term is -5x. Take half its coefficient (-2.5). Square it (6.25) and add it to both sides. Add '6.25' to each side of the equation. -5x + 6.25 + x2 = 0.25 + 6.25 Reorder the terms: 6.25 + -5x + x2 = 0.25 + 6.25 Combine like terms: 0.25 + 6.25 = 6.5 6.25 + -5x + x2 = 6.5 Factor a perfect square on the left side: (x + -2.5)(x + -2.5) = 6.5 Calculate the square root of the right side: 2.549509757 Break this problem into two subproblems by setting (x + -2.5) equal to 2.549509757 and -2.549509757.Subproblem 1
x + -2.5 = 2.549509757 Simplifying x + -2.5 = 2.549509757 Reorder the terms: -2.5 + x = 2.549509757 Solving -2.5 + x = 2.549509757 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + x = 2.549509757 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + x = 2.549509757 + 2.5 x = 2.549509757 + 2.5 Combine like terms: 2.549509757 + 2.5 = 5.049509757 x = 5.049509757 Simplifying x = 5.049509757Subproblem 2
x + -2.5 = -2.549509757 Simplifying x + -2.5 = -2.549509757 Reorder the terms: -2.5 + x = -2.549509757 Solving -2.5 + x = -2.549509757 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + x = -2.549509757 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + x = -2.549509757 + 2.5 x = -2.549509757 + 2.5 Combine like terms: -2.549509757 + 2.5 = -0.049509757 x = -0.049509757 Simplifying x = -0.049509757Solution
The solution to the problem is based on the solutions from the subproblems. x = {5.049509757, -0.049509757}Solution
x = {5.049509757, -0.049509757}
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