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Simplifying (3x + 2) * 5(4 + 2x) = 10(3x + 4) + -8 Reorder the terms: (2 + 3x) * 5(4 + 2x) = 10(3x + 4) + -8 Reorder the terms for easier multiplication: 5(2 + 3x)(4 + 2x) = 10(3x + 4) + -8 Multiply (2 + 3x) * (4 + 2x) 5(2(4 + 2x) + 3x * (4 + 2x)) = 10(3x + 4) + -8 5((4 * 2 + 2x * 2) + 3x * (4 + 2x)) = 10(3x + 4) + -8 5((8 + 4x) + 3x * (4 + 2x)) = 10(3x + 4) + -8 5(8 + 4x + (4 * 3x + 2x * 3x)) = 10(3x + 4) + -8 5(8 + 4x + (12x + 6x2)) = 10(3x + 4) + -8 Combine like terms: 4x + 12x = 16x 5(8 + 16x + 6x2) = 10(3x + 4) + -8 (8 * 5 + 16x * 5 + 6x2 * 5) = 10(3x + 4) + -8 (40 + 80x + 30x2) = 10(3x + 4) + -8 Reorder the terms: 40 + 80x + 30x2 = 10(4 + 3x) + -8 40 + 80x + 30x2 = (4 * 10 + 3x * 10) + -8 40 + 80x + 30x2 = (40 + 30x) + -8 Reorder the terms: 40 + 80x + 30x2 = 40 + -8 + 30x Combine like terms: 40 + -8 = 32 40 + 80x + 30x2 = 32 + 30x Solving 40 + 80x + 30x2 = 32 + 30x Solving for variable 'x'. Reorder the terms: 40 + -32 + 80x + -30x + 30x2 = 32 + 30x + -32 + -30x Combine like terms: 40 + -32 = 8 8 + 80x + -30x + 30x2 = 32 + 30x + -32 + -30x Combine like terms: 80x + -30x = 50x 8 + 50x + 30x2 = 32 + 30x + -32 + -30x Reorder the terms: 8 + 50x + 30x2 = 32 + -32 + 30x + -30x Combine like terms: 32 + -32 = 0 8 + 50x + 30x2 = 0 + 30x + -30x 8 + 50x + 30x2 = 30x + -30x Combine like terms: 30x + -30x = 0 8 + 50x + 30x2 = 0 Factor out the Greatest Common Factor (GCF), '2'. 2(4 + 25x + 15x2) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(4 + 25x + 15x2)' equal to zero and attempt to solve: Simplifying 4 + 25x + 15x2 = 0 Solving 4 + 25x + 15x2 = 0 Begin completing the square. Divide all terms by 15 the coefficient of the squared term: Divide each side by '15'. 0.2666666667 + 1.666666667x + x2 = 0 Move the constant term to the right: Add '-0.2666666667' to each side of the equation. 0.2666666667 + 1.666666667x + -0.2666666667 + x2 = 0 + -0.2666666667 Reorder the terms: 0.2666666667 + -0.2666666667 + 1.666666667x + x2 = 0 + -0.2666666667 Combine like terms: 0.2666666667 + -0.2666666667 = 0.0000000000 0.0000000000 + 1.666666667x + x2 = 0 + -0.2666666667 1.666666667x + x2 = 0 + -0.2666666667 Combine like terms: 0 + -0.2666666667 = -0.2666666667 1.666666667x + x2 = -0.2666666667 The x term is 1.666666667x. Take half its coefficient (0.8333333335). Square it (0.6944444447) and add it to both sides. Add '0.6944444447' to each side of the equation. 1.666666667x + 0.6944444447 + x2 = -0.2666666667 + 0.6944444447 Reorder the terms: 0.6944444447 + 1.666666667x + x2 = -0.2666666667 + 0.6944444447 Combine like terms: -0.2666666667 + 0.6944444447 = 0.427777778 0.6944444447 + 1.666666667x + x2 = 0.427777778 Factor a perfect square on the left side: (x + 0.8333333335)(x + 0.8333333335) = 0.427777778 Calculate the square root of the right side: 0.654047229 Break this problem into two subproblems by setting (x + 0.8333333335) equal to 0.654047229 and -0.654047229.Subproblem 1
x + 0.8333333335 = 0.654047229 Simplifying x + 0.8333333335 = 0.654047229 Reorder the terms: 0.8333333335 + x = 0.654047229 Solving 0.8333333335 + x = 0.654047229 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.8333333335' to each side of the equation. 0.8333333335 + -0.8333333335 + x = 0.654047229 + -0.8333333335 Combine like terms: 0.8333333335 + -0.8333333335 = 0.0000000000 0.0000000000 + x = 0.654047229 + -0.8333333335 x = 0.654047229 + -0.8333333335 Combine like terms: 0.654047229 + -0.8333333335 = -0.1792861045 x = -0.1792861045 Simplifying x = -0.1792861045Subproblem 2
x + 0.8333333335 = -0.654047229 Simplifying x + 0.8333333335 = -0.654047229 Reorder the terms: 0.8333333335 + x = -0.654047229 Solving 0.8333333335 + x = -0.654047229 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.8333333335' to each side of the equation. 0.8333333335 + -0.8333333335 + x = -0.654047229 + -0.8333333335 Combine like terms: 0.8333333335 + -0.8333333335 = 0.0000000000 0.0000000000 + x = -0.654047229 + -0.8333333335 x = -0.654047229 + -0.8333333335 Combine like terms: -0.654047229 + -0.8333333335 = -1.4873805625 x = -1.4873805625 Simplifying x = -1.4873805625Solution
The solution to the problem is based on the solutions from the subproblems. x = {-0.1792861045, -1.4873805625}Solution
x = {-0.1792861045, -1.4873805625}
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