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Simplifying 5v2 + 10v + 20 = 0 Reorder the terms: 20 + 10v + 5v2 = 0 Solving 20 + 10v + 5v2 = 0 Solving for variable 'v'. Factor out the Greatest Common Factor (GCF), '5'. 5(4 + 2v + v2) = 0 Ignore the factor 5.Subproblem 1
Set the factor '(4 + 2v + v2)' equal to zero and attempt to solve: Simplifying 4 + 2v + v2 = 0 Solving 4 + 2v + v2 = 0 Begin completing the square. Move the constant term to the right: Add '-4' to each side of the equation. 4 + 2v + -4 + v2 = 0 + -4 Reorder the terms: 4 + -4 + 2v + v2 = 0 + -4 Combine like terms: 4 + -4 = 0 0 + 2v + v2 = 0 + -4 2v + v2 = 0 + -4 Combine like terms: 0 + -4 = -4 2v + v2 = -4 The v term is 2v. Take half its coefficient (1). Square it (1) and add it to both sides. Add '1' to each side of the equation. 2v + 1 + v2 = -4 + 1 Reorder the terms: 1 + 2v + v2 = -4 + 1 Combine like terms: -4 + 1 = -3 1 + 2v + v2 = -3 Factor a perfect square on the left side: (v + 1)(v + 1) = -3 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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