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Simplifying 5x2 + 20x + 20 = -35 Reorder the terms: 20 + 20x + 5x2 = -35 Solving 20 + 20x + 5x2 = -35 Solving for variable 'x'. Reorder the terms: 20 + 35 + 20x + 5x2 = -35 + 35 Combine like terms: 20 + 35 = 55 55 + 20x + 5x2 = -35 + 35 Combine like terms: -35 + 35 = 0 55 + 20x + 5x2 = 0 Factor out the Greatest Common Factor (GCF), '5'. 5(11 + 4x + x2) = 0 Ignore the factor 5.Subproblem 1
Set the factor '(11 + 4x + x2)' equal to zero and attempt to solve: Simplifying 11 + 4x + x2 = 0 Solving 11 + 4x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-11' to each side of the equation. 11 + 4x + -11 + x2 = 0 + -11 Reorder the terms: 11 + -11 + 4x + x2 = 0 + -11 Combine like terms: 11 + -11 = 0 0 + 4x + x2 = 0 + -11 4x + x2 = 0 + -11 Combine like terms: 0 + -11 = -11 4x + x2 = -11 The x term is 4x. Take half its coefficient (2). Square it (4) and add it to both sides. Add '4' to each side of the equation. 4x + 4 + x2 = -11 + 4 Reorder the terms: 4 + 4x + x2 = -11 + 4 Combine like terms: -11 + 4 = -7 4 + 4x + x2 = -7 Factor a perfect square on the left side: (x + 2)(x + 2) = -7 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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