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Simplifying (3x + -4)(3x + -4) = 8 Reorder the terms: (-4 + 3x)(3x + -4) = 8 Reorder the terms: (-4 + 3x)(-4 + 3x) = 8 Multiply (-4 + 3x) * (-4 + 3x) (-4(-4 + 3x) + 3x * (-4 + 3x)) = 8 ((-4 * -4 + 3x * -4) + 3x * (-4 + 3x)) = 8 ((16 + -12x) + 3x * (-4 + 3x)) = 8 (16 + -12x + (-4 * 3x + 3x * 3x)) = 8 (16 + -12x + (-12x + 9x2)) = 8 Combine like terms: -12x + -12x = -24x (16 + -24x + 9x2) = 8 Solving 16 + -24x + 9x2 = 8 Solving for variable 'x'. Reorder the terms: 16 + -8 + -24x + 9x2 = 8 + -8 Combine like terms: 16 + -8 = 8 8 + -24x + 9x2 = 8 + -8 Combine like terms: 8 + -8 = 0 8 + -24x + 9x2 = 0 Begin completing the square. Divide all terms by 9 the coefficient of the squared term: Divide each side by '9'. 0.8888888889 + -2.666666667x + x2 = 0 Move the constant term to the right: Add '-0.8888888889' to each side of the equation. 0.8888888889 + -2.666666667x + -0.8888888889 + x2 = 0 + -0.8888888889 Reorder the terms: 0.8888888889 + -0.8888888889 + -2.666666667x + x2 = 0 + -0.8888888889 Combine like terms: 0.8888888889 + -0.8888888889 = 0.0000000000 0.0000000000 + -2.666666667x + x2 = 0 + -0.8888888889 -2.666666667x + x2 = 0 + -0.8888888889 Combine like terms: 0 + -0.8888888889 = -0.8888888889 -2.666666667x + x2 = -0.8888888889 The x term is -2.666666667x. Take half its coefficient (-1.333333334). Square it (1.777777780) and add it to both sides. Add '1.777777780' to each side of the equation. -2.666666667x + 1.777777780 + x2 = -0.8888888889 + 1.777777780 Reorder the terms: 1.777777780 + -2.666666667x + x2 = -0.8888888889 + 1.777777780 Combine like terms: -0.8888888889 + 1.777777780 = 0.8888888911 1.777777780 + -2.666666667x + x2 = 0.8888888911 Factor a perfect square on the left side: (x + -1.333333334)(x + -1.333333334) = 0.8888888911 Calculate the square root of the right side: 0.942809043 Break this problem into two subproblems by setting (x + -1.333333334) equal to 0.942809043 and -0.942809043.Subproblem 1
x + -1.333333334 = 0.942809043 Simplifying x + -1.333333334 = 0.942809043 Reorder the terms: -1.333333334 + x = 0.942809043 Solving -1.333333334 + x = 0.942809043 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.333333334' to each side of the equation. -1.333333334 + 1.333333334 + x = 0.942809043 + 1.333333334 Combine like terms: -1.333333334 + 1.333333334 = 0.000000000 0.000000000 + x = 0.942809043 + 1.333333334 x = 0.942809043 + 1.333333334 Combine like terms: 0.942809043 + 1.333333334 = 2.276142377 x = 2.276142377 Simplifying x = 2.276142377Subproblem 2
x + -1.333333334 = -0.942809043 Simplifying x + -1.333333334 = -0.942809043 Reorder the terms: -1.333333334 + x = -0.942809043 Solving -1.333333334 + x = -0.942809043 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.333333334' to each side of the equation. -1.333333334 + 1.333333334 + x = -0.942809043 + 1.333333334 Combine like terms: -1.333333334 + 1.333333334 = 0.000000000 0.000000000 + x = -0.942809043 + 1.333333334 x = -0.942809043 + 1.333333334 Combine like terms: -0.942809043 + 1.333333334 = 0.390524291 x = 0.390524291 Simplifying x = 0.390524291Solution
The solution to the problem is based on the solutions from the subproblems. x = {2.276142377, 0.390524291}
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