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Simplifying (2z + 9)(6 + -1z) = 0 Reorder the terms: (9 + 2z)(6 + -1z) = 0 Multiply (9 + 2z) * (6 + -1z) (9(6 + -1z) + 2z * (6 + -1z)) = 0 ((6 * 9 + -1z * 9) + 2z * (6 + -1z)) = 0 ((54 + -9z) + 2z * (6 + -1z)) = 0 (54 + -9z + (6 * 2z + -1z * 2z)) = 0 (54 + -9z + (12z + -2z2)) = 0 Combine like terms: -9z + 12z = 3z (54 + 3z + -2z2) = 0 Solving 54 + 3z + -2z2 = 0 Solving for variable 'z'. Factor a trinomial. (6 + -1z)(9 + 2z) = 0Subproblem 1
Set the factor '(6 + -1z)' equal to zero and attempt to solve: Simplifying 6 + -1z = 0 Solving 6 + -1z = 0 Move all terms containing z to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -1z = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -1z = 0 + -6 -1z = 0 + -6 Combine like terms: 0 + -6 = -6 -1z = -6 Divide each side by '-1'. z = 6 Simplifying z = 6Subproblem 2
Set the factor '(9 + 2z)' equal to zero and attempt to solve: Simplifying 9 + 2z = 0 Solving 9 + 2z = 0 Move all terms containing z to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + 2z = 0 + -9 Combine like terms: 9 + -9 = 0 0 + 2z = 0 + -9 2z = 0 + -9 Combine like terms: 0 + -9 = -9 2z = -9 Divide each side by '2'. z = -4.5 Simplifying z = -4.5Solution
z = {6, -4.5}
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