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Simplifying 8(3x2 + 9x + -4) = 0 Reorder the terms: 8(-4 + 9x + 3x2) = 0 (-4 * 8 + 9x * 8 + 3x2 * 8) = 0 (-32 + 72x + 24x2) = 0 Solving -32 + 72x + 24x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '8'. 8(-4 + 9x + 3x2) = 0 Ignore the factor 8.Subproblem 1
Set the factor '(-4 + 9x + 3x2)' equal to zero and attempt to solve: Simplifying -4 + 9x + 3x2 = 0 Solving -4 + 9x + 3x2 = 0 Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. -1.333333333 + 3x + x2 = 0 Move the constant term to the right: Add '1.333333333' to each side of the equation. -1.333333333 + 3x + 1.333333333 + x2 = 0 + 1.333333333 Reorder the terms: -1.333333333 + 1.333333333 + 3x + x2 = 0 + 1.333333333 Combine like terms: -1.333333333 + 1.333333333 = 0.000000000 0.000000000 + 3x + x2 = 0 + 1.333333333 3x + x2 = 0 + 1.333333333 Combine like terms: 0 + 1.333333333 = 1.333333333 3x + x2 = 1.333333333 The x term is 3x. Take half its coefficient (1.5). Square it (2.25) and add it to both sides. Add '2.25' to each side of the equation. 3x + 2.25 + x2 = 1.333333333 + 2.25 Reorder the terms: 2.25 + 3x + x2 = 1.333333333 + 2.25 Combine like terms: 1.333333333 + 2.25 = 3.583333333 2.25 + 3x + x2 = 3.583333333 Factor a perfect square on the left side: (x + 1.5)(x + 1.5) = 3.583333333 Calculate the square root of the right side: 1.892969449 Break this problem into two subproblems by setting (x + 1.5) equal to 1.892969449 and -1.892969449.Subproblem 1
x + 1.5 = 1.892969449 Simplifying x + 1.5 = 1.892969449 Reorder the terms: 1.5 + x = 1.892969449 Solving 1.5 + x = 1.892969449 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + x = 1.892969449 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = 1.892969449 + -1.5 x = 1.892969449 + -1.5 Combine like terms: 1.892969449 + -1.5 = 0.392969449 x = 0.392969449 Simplifying x = 0.392969449Subproblem 2
x + 1.5 = -1.892969449 Simplifying x + 1.5 = -1.892969449 Reorder the terms: 1.5 + x = -1.892969449 Solving 1.5 + x = -1.892969449 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + x = -1.892969449 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = -1.892969449 + -1.5 x = -1.892969449 + -1.5 Combine like terms: -1.892969449 + -1.5 = -3.392969449 x = -3.392969449 Simplifying x = -3.392969449Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.392969449, -3.392969449}Solution
x = {0.392969449, -3.392969449}
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