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Simplifying 2X2 + 10X = 40 Reorder the terms: 10X + 2X2 = 40 Solving 10X + 2X2 = 40 Solving for variable 'X'. Reorder the terms: -40 + 10X + 2X2 = 40 + -40 Combine like terms: 40 + -40 = 0 -40 + 10X + 2X2 = 0 Factor out the Greatest Common Factor (GCF), '2'. 2(-20 + 5X + X2) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(-20 + 5X + X2)' equal to zero and attempt to solve: Simplifying -20 + 5X + X2 = 0 Solving -20 + 5X + X2 = 0 Begin completing the square. Move the constant term to the right: Add '20' to each side of the equation. -20 + 5X + 20 + X2 = 0 + 20 Reorder the terms: -20 + 20 + 5X + X2 = 0 + 20 Combine like terms: -20 + 20 = 0 0 + 5X + X2 = 0 + 20 5X + X2 = 0 + 20 Combine like terms: 0 + 20 = 20 5X + X2 = 20 The X term is 5X. Take half its coefficient (2.5). Square it (6.25) and add it to both sides. Add '6.25' to each side of the equation. 5X + 6.25 + X2 = 20 + 6.25 Reorder the terms: 6.25 + 5X + X2 = 20 + 6.25 Combine like terms: 20 + 6.25 = 26.25 6.25 + 5X + X2 = 26.25 Factor a perfect square on the left side: (X + 2.5)(X + 2.5) = 26.25 Calculate the square root of the right side: 5.123475383 Break this problem into two subproblems by setting (X + 2.5) equal to 5.123475383 and -5.123475383.Subproblem 1
X + 2.5 = 5.123475383 Simplifying X + 2.5 = 5.123475383 Reorder the terms: 2.5 + X = 5.123475383 Solving 2.5 + X = 5.123475383 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + X = 5.123475383 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + X = 5.123475383 + -2.5 X = 5.123475383 + -2.5 Combine like terms: 5.123475383 + -2.5 = 2.623475383 X = 2.623475383 Simplifying X = 2.623475383Subproblem 2
X + 2.5 = -5.123475383 Simplifying X + 2.5 = -5.123475383 Reorder the terms: 2.5 + X = -5.123475383 Solving 2.5 + X = -5.123475383 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + X = -5.123475383 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + X = -5.123475383 + -2.5 X = -5.123475383 + -2.5 Combine like terms: -5.123475383 + -2.5 = -7.623475383 X = -7.623475383 Simplifying X = -7.623475383Solution
The solution to the problem is based on the solutions from the subproblems. X = {2.623475383, -7.623475383}Solution
X = {2.623475383, -7.623475383}
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