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Simplifying 4x2 + -12x + -9 = 25 Reorder the terms: -9 + -12x + 4x2 = 25 Solving -9 + -12x + 4x2 = 25 Solving for variable 'x'. Reorder the terms: -9 + -25 + -12x + 4x2 = 25 + -25 Combine like terms: -9 + -25 = -34 -34 + -12x + 4x2 = 25 + -25 Combine like terms: 25 + -25 = 0 -34 + -12x + 4x2 = 0 Factor out the Greatest Common Factor (GCF), '2'. 2(-17 + -6x + 2x2) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(-17 + -6x + 2x2)' equal to zero and attempt to solve: Simplifying -17 + -6x + 2x2 = 0 Solving -17 + -6x + 2x2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -8.5 + -3x + x2 = 0 Move the constant term to the right: Add '8.5' to each side of the equation. -8.5 + -3x + 8.5 + x2 = 0 + 8.5 Reorder the terms: -8.5 + 8.5 + -3x + x2 = 0 + 8.5 Combine like terms: -8.5 + 8.5 = 0.0 0.0 + -3x + x2 = 0 + 8.5 -3x + x2 = 0 + 8.5 Combine like terms: 0 + 8.5 = 8.5 -3x + x2 = 8.5 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 = 8.5 + 2.25 Reorder the terms: 2.25 + -3x + x2 = 8.5 + 2.25 Combine like terms: 8.5 + 2.25 = 10.75 2.25 + -3x + x2 = 10.75 Factor a perfect square on the left side: (x + -1.5)(x + -1.5) = 10.75 Calculate the square root of the right side: 3.278719262 Break this problem into two subproblems by setting (x + -1.5) equal to 3.278719262 and -3.278719262.Subproblem 1
x + -1.5 = 3.278719262 Simplifying x + -1.5 = 3.278719262 Reorder the terms: -1.5 + x = 3.278719262 Solving -1.5 + x = 3.278719262 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 = 3.278719262 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = 3.278719262 + 1.5 x = 3.278719262 + 1.5 Combine like terms: 3.278719262 + 1.5 = 4.778719262 x = 4.778719262 Simplifying x = 4.778719262Subproblem 2
x + -1.5 = -3.278719262 Simplifying x + -1.5 = -3.278719262 Reorder the terms: -1.5 + x = -3.278719262 Solving -1.5 + x = -3.278719262 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 = -3.278719262 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = -3.278719262 + 1.5 x = -3.278719262 + 1.5 Combine like terms: -3.278719262 + 1.5 = -1.778719262 x = -1.778719262 Simplifying x = -1.778719262Solution
The solution to the problem is based on the solutions from the subproblems. x = {4.778719262, -1.778719262}Solution
x = {4.778719262, -1.778719262}
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