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Simplifying 8z2 + 10z = 12 Reorder the terms: 10z + 8z2 = 12 Solving 10z + 8z2 = 12 Solving for variable 'z'. Reorder the terms: -12 + 10z + 8z2 = 12 + -12 Combine like terms: 12 + -12 = 0 -12 + 10z + 8z2 = 0 Factor out the Greatest Common Factor (GCF), '2'. 2(-6 + 5z + 4z2) = 0 Factor a trinomial. 2((-2 + -1z)(3 + -4z)) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(-2 + -1z)' equal to zero and attempt to solve: Simplifying -2 + -1z = 0 Solving -2 + -1z = 0 Move all terms containing z to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -1z = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1z = 0 + 2 -1z = 0 + 2 Combine like terms: 0 + 2 = 2 -1z = 2 Divide each side by '-1'. z = -2 Simplifying z = -2Subproblem 2
Set the factor '(3 + -4z)' equal to zero and attempt to solve: Simplifying 3 + -4z = 0 Solving 3 + -4z = 0 Move all terms containing z to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -4z = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -4z = 0 + -3 -4z = 0 + -3 Combine like terms: 0 + -3 = -3 -4z = -3 Divide each side by '-4'. z = 0.75 Simplifying z = 0.75Solution
z = {-2, 0.75}
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