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Simplifying 3x + -11 = (x + 5)(x + 5) Reorder the terms: -11 + 3x = (x + 5)(x + 5) Reorder the terms: -11 + 3x = (5 + x)(x + 5) Reorder the terms: -11 + 3x = (5 + x)(5 + x) Multiply (5 + x) * (5 + x) -11 + 3x = (5(5 + x) + x(5 + x)) -11 + 3x = ((5 * 5 + x * 5) + x(5 + x)) -11 + 3x = ((25 + 5x) + x(5 + x)) -11 + 3x = (25 + 5x + (5 * x + x * x)) -11 + 3x = (25 + 5x + (5x + x2)) Combine like terms: 5x + 5x = 10x -11 + 3x = (25 + 10x + x2) Solving -11 + 3x = 25 + 10x + x2 Solving for variable 'x'. Reorder the terms: -11 + -25 + 3x + -10x + -1x2 = 25 + 10x + x2 + -25 + -10x + -1x2 Combine like terms: -11 + -25 = -36 -36 + 3x + -10x + -1x2 = 25 + 10x + x2 + -25 + -10x + -1x2 Combine like terms: 3x + -10x = -7x -36 + -7x + -1x2 = 25 + 10x + x2 + -25 + -10x + -1x2 Reorder the terms: -36 + -7x + -1x2 = 25 + -25 + 10x + -10x + x2 + -1x2 Combine like terms: 25 + -25 = 0 -36 + -7x + -1x2 = 0 + 10x + -10x + x2 + -1x2 -36 + -7x + -1x2 = 10x + -10x + x2 + -1x2 Combine like terms: 10x + -10x = 0 -36 + -7x + -1x2 = 0 + x2 + -1x2 -36 + -7x + -1x2 = x2 + -1x2 Combine like terms: x2 + -1x2 = 0 -36 + -7x + -1x2 = 0 Factor out the Greatest Common Factor (GCF), '-1'. -1(36 + 7x + x2) = 0 Ignore the factor -1.Subproblem 1
Set the factor '(36 + 7x + x2)' equal to zero and attempt to solve: Simplifying 36 + 7x + x2 = 0 Solving 36 + 7x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-36' to each side of the equation. 36 + 7x + -36 + x2 = 0 + -36 Reorder the terms: 36 + -36 + 7x + x2 = 0 + -36 Combine like terms: 36 + -36 = 0 0 + 7x + x2 = 0 + -36 7x + x2 = 0 + -36 Combine like terms: 0 + -36 = -36 7x + x2 = -36 The x term is 7x. Take half its coefficient (3.5). Square it (12.25) and add it to both sides. Add '12.25' to each side of the equation. 7x + 12.25 + x2 = -36 + 12.25 Reorder the terms: 12.25 + 7x + x2 = -36 + 12.25 Combine like terms: -36 + 12.25 = -23.75 12.25 + 7x + x2 = -23.75 Factor a perfect square on the left side: (x + 3.5)(x + 3.5) = -23.75 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.
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