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Simplifying 16x2 + -14x + -16 = 0 Reorder the terms: -16 + -14x + 16x2 = 0 Solving -16 + -14x + 16x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '2'. 2(-8 + -7x + 8x2) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(-8 + -7x + 8x2)' equal to zero and attempt to solve: Simplifying -8 + -7x + 8x2 = 0 Solving -8 + -7x + 8x2 = 0 Begin completing the square. Divide all terms by 8 the coefficient of the squared term: Divide each side by '8'. -1 + -0.875x + x2 = 0 Move the constant term to the right: Add '1' to each side of the equation. -1 + -0.875x + 1 + x2 = 0 + 1 Reorder the terms: -1 + 1 + -0.875x + x2 = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -0.875x + x2 = 0 + 1 -0.875x + x2 = 0 + 1 Combine like terms: 0 + 1 = 1 -0.875x + x2 = 1 The x term is -0.875x. Take half its coefficient (-0.4375). Square it (0.19140625) and add it to both sides. Add '0.19140625' to each side of the equation. -0.875x + 0.19140625 + x2 = 1 + 0.19140625 Reorder the terms: 0.19140625 + -0.875x + x2 = 1 + 0.19140625 Combine like terms: 1 + 0.19140625 = 1.19140625 0.19140625 + -0.875x + x2 = 1.19140625 Factor a perfect square on the left side: (x + -0.4375)(x + -0.4375) = 1.19140625 Calculate the square root of the right side: 1.091515575 Break this problem into two subproblems by setting (x + -0.4375) equal to 1.091515575 and -1.091515575.Subproblem 1
x + -0.4375 = 1.091515575 Simplifying x + -0.4375 = 1.091515575 Reorder the terms: -0.4375 + x = 1.091515575 Solving -0.4375 + x = 1.091515575 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.4375' to each side of the equation. -0.4375 + 0.4375 + x = 1.091515575 + 0.4375 Combine like terms: -0.4375 + 0.4375 = 0.0000 0.0000 + x = 1.091515575 + 0.4375 x = 1.091515575 + 0.4375 Combine like terms: 1.091515575 + 0.4375 = 1.529015575 x = 1.529015575 Simplifying x = 1.529015575Subproblem 2
x + -0.4375 = -1.091515575 Simplifying x + -0.4375 = -1.091515575 Reorder the terms: -0.4375 + x = -1.091515575 Solving -0.4375 + x = -1.091515575 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.4375' to each side of the equation. -0.4375 + 0.4375 + x = -1.091515575 + 0.4375 Combine like terms: -0.4375 + 0.4375 = 0.0000 0.0000 + x = -1.091515575 + 0.4375 x = -1.091515575 + 0.4375 Combine like terms: -1.091515575 + 0.4375 = -0.654015575 x = -0.654015575 Simplifying x = -0.654015575Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.529015575, -0.654015575}Solution
x = {1.529015575, -0.654015575}
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