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Simplifying (3z + 8)(4 + -1z) = 0 Reorder the terms: (8 + 3z)(4 + -1z) = 0 Multiply (8 + 3z) * (4 + -1z) (8(4 + -1z) + 3z * (4 + -1z)) = 0 ((4 * 8 + -1z * 8) + 3z * (4 + -1z)) = 0 ((32 + -8z) + 3z * (4 + -1z)) = 0 (32 + -8z + (4 * 3z + -1z * 3z)) = 0 (32 + -8z + (12z + -3z2)) = 0 Combine like terms: -8z + 12z = 4z (32 + 4z + -3z2) = 0 Solving 32 + 4z + -3z2 = 0 Solving for variable 'z'. Factor a trinomial. (4 + -1z)(8 + 3z) = 0Subproblem 1
Set the factor '(4 + -1z)' equal to zero and attempt to solve: Simplifying 4 + -1z = 0 Solving 4 + -1z = 0 Move all terms containing z to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1z = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1z = 0 + -4 -1z = 0 + -4 Combine like terms: 0 + -4 = -4 -1z = -4 Divide each side by '-1'. z = 4 Simplifying z = 4Subproblem 2
Set the factor '(8 + 3z)' equal to zero and attempt to solve: Simplifying 8 + 3z = 0 Solving 8 + 3z = 0 Move all terms containing z to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + 3z = 0 + -8 Combine like terms: 8 + -8 = 0 0 + 3z = 0 + -8 3z = 0 + -8 Combine like terms: 0 + -8 = -8 3z = -8 Divide each side by '3'. z = -2.666666667 Simplifying z = -2.666666667Solution
z = {4, -2.666666667}
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