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Simplifying 10x2 + -30x + -240 = 0 Reorder the terms: -240 + -30x + 10x2 = 0 Solving -240 + -30x + 10x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '10'. 10(-24 + -3x + x2) = 0 Ignore the factor 10.Subproblem 1
Set the factor '(-24 + -3x + x2)' equal to zero and attempt to solve: Simplifying -24 + -3x + x2 = 0 Solving -24 + -3x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '24' to each side of the equation. -24 + -3x + 24 + x2 = 0 + 24 Reorder the terms: -24 + 24 + -3x + x2 = 0 + 24 Combine like terms: -24 + 24 = 0 0 + -3x + x2 = 0 + 24 -3x + x2 = 0 + 24 Combine like terms: 0 + 24 = 24 -3x + x2 = 24 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 = 24 + 2.25 Reorder the terms: 2.25 + -3x + x2 = 24 + 2.25 Combine like terms: 24 + 2.25 = 26.25 2.25 + -3x + x2 = 26.25 Factor a perfect square on the left side: (x + -1.5)(x + -1.5) = 26.25 Calculate the square root of the right side: 5.123475383 Break this problem into two subproblems by setting (x + -1.5) equal to 5.123475383 and -5.123475383.Subproblem 1
x + -1.5 = 5.123475383 Simplifying x + -1.5 = 5.123475383 Reorder the terms: -1.5 + x = 5.123475383 Solving -1.5 + x = 5.123475383 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 = 5.123475383 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = 5.123475383 + 1.5 x = 5.123475383 + 1.5 Combine like terms: 5.123475383 + 1.5 = 6.623475383 x = 6.623475383 Simplifying x = 6.623475383Subproblem 2
x + -1.5 = -5.123475383 Simplifying x + -1.5 = -5.123475383 Reorder the terms: -1.5 + x = -5.123475383 Solving -1.5 + x = -5.123475383 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 = -5.123475383 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = -5.123475383 + 1.5 x = -5.123475383 + 1.5 Combine like terms: -5.123475383 + 1.5 = -3.623475383 x = -3.623475383 Simplifying x = -3.623475383Solution
The solution to the problem is based on the solutions from the subproblems. x = {6.623475383, -3.623475383}Solution
x = {6.623475383, -3.623475383}
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