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Simplifying z2 + 15z = 0 Reorder the terms: 15z + z2 = 0 Solving 15z + z2 = 0 Solving for variable 'z'. Factor out the Greatest Common Factor (GCF), 'z'. z(15 + z) = 0Subproblem 1
Set the factor 'z' equal to zero and attempt to solve: Simplifying z = 0 Solving z = 0 Move all terms containing z to the left, all other terms to the right. Simplifying z = 0Subproblem 2
Set the factor '(15 + z)' equal to zero and attempt to solve: Simplifying 15 + z = 0 Solving 15 + z = 0 Move all terms containing z to the left, all other terms to the right. Add '-15' to each side of the equation. 15 + -15 + z = 0 + -15 Combine like terms: 15 + -15 = 0 0 + z = 0 + -15 z = 0 + -15 Combine like terms: 0 + -15 = -15 z = -15 Simplifying z = -15Solution
z = {0, -15}
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