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Simplifying 0 = -3x(x + -6) + -2(-7x + -5) Reorder the terms: 0 = -3x(-6 + x) + -2(-7x + -5) 0 = (-6 * -3x + x * -3x) + -2(-7x + -5) 0 = (18x + -3x2) + -2(-7x + -5) Reorder the terms: 0 = 18x + -3x2 + -2(-5 + -7x) 0 = 18x + -3x2 + (-5 * -2 + -7x * -2) 0 = 18x + -3x2 + (10 + 14x) Reorder the terms: 0 = 10 + 18x + 14x + -3x2 Combine like terms: 18x + 14x = 32x 0 = 10 + 32x + -3x2 Solving 0 = 10 + 32x + -3x2 Solving for variable 'x'. Combine like terms: 0 + -10 = -10 -10 + -32x + 3x2 = 10 + 32x + -3x2 + -10 + -32x + 3x2 Reorder the terms: -10 + -32x + 3x2 = 10 + -10 + 32x + -32x + -3x2 + 3x2 Combine like terms: 10 + -10 = 0 -10 + -32x + 3x2 = 0 + 32x + -32x + -3x2 + 3x2 -10 + -32x + 3x2 = 32x + -32x + -3x2 + 3x2 Combine like terms: 32x + -32x = 0 -10 + -32x + 3x2 = 0 + -3x2 + 3x2 -10 + -32x + 3x2 = -3x2 + 3x2 Combine like terms: -3x2 + 3x2 = 0 -10 + -32x + 3x2 = 0 Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. -3.333333333 + -10.66666667x + x2 = 0 Move the constant term to the right: Add '3.333333333' to each side of the equation. -3.333333333 + -10.66666667x + 3.333333333 + x2 = 0 + 3.333333333 Reorder the terms: -3.333333333 + 3.333333333 + -10.66666667x + x2 = 0 + 3.333333333 Combine like terms: -3.333333333 + 3.333333333 = 0.000000000 0.000000000 + -10.66666667x + x2 = 0 + 3.333333333 -10.66666667x + x2 = 0 + 3.333333333 Combine like terms: 0 + 3.333333333 = 3.333333333 -10.66666667x + x2 = 3.333333333 The x term is -10.66666667x. Take half its coefficient (-5.333333335). Square it (28.44444446) and add it to both sides. Add '28.44444446' to each side of the equation. -10.66666667x + 28.44444446 + x2 = 3.333333333 + 28.44444446 Reorder the terms: 28.44444446 + -10.66666667x + x2 = 3.333333333 + 28.44444446 Combine like terms: 3.333333333 + 28.44444446 = 31.777777793 28.44444446 + -10.66666667x + x2 = 31.777777793 Factor a perfect square on the left side: (x + -5.333333335)(x + -5.333333335) = 31.777777793 Calculate the square root of the right side: 5.637178176 Break this problem into two subproblems by setting (x + -5.333333335) equal to 5.637178176 and -5.637178176.Subproblem 1
x + -5.333333335 = 5.637178176 Simplifying x + -5.333333335 = 5.637178176 Reorder the terms: -5.333333335 + x = 5.637178176 Solving -5.333333335 + x = 5.637178176 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.333333335' to each side of the equation. -5.333333335 + 5.333333335 + x = 5.637178176 + 5.333333335 Combine like terms: -5.333333335 + 5.333333335 = 0.000000000 0.000000000 + x = 5.637178176 + 5.333333335 x = 5.637178176 + 5.333333335 Combine like terms: 5.637178176 + 5.333333335 = 10.970511511 x = 10.970511511 Simplifying x = 10.970511511Subproblem 2
x + -5.333333335 = -5.637178176 Simplifying x + -5.333333335 = -5.637178176 Reorder the terms: -5.333333335 + x = -5.637178176 Solving -5.333333335 + x = -5.637178176 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.333333335' to each side of the equation. -5.333333335 + 5.333333335 + x = -5.637178176 + 5.333333335 Combine like terms: -5.333333335 + 5.333333335 = 0.000000000 0.000000000 + x = -5.637178176 + 5.333333335 x = -5.637178176 + 5.333333335 Combine like terms: -5.637178176 + 5.333333335 = -0.303844841 x = -0.303844841 Simplifying x = -0.303844841Solution
The solution to the problem is based on the solutions from the subproblems. x = {10.970511511, -0.303844841}
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