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Simplifying (5 + -1z)(5z + 3) = 0 Reorder the terms: (5 + -1z)(3 + 5z) = 0 Multiply (5 + -1z) * (3 + 5z) (5(3 + 5z) + -1z * (3 + 5z)) = 0 ((3 * 5 + 5z * 5) + -1z * (3 + 5z)) = 0 ((15 + 25z) + -1z * (3 + 5z)) = 0 (15 + 25z + (3 * -1z + 5z * -1z)) = 0 (15 + 25z + (-3z + -5z2)) = 0 Combine like terms: 25z + -3z = 22z (15 + 22z + -5z2) = 0 Solving 15 + 22z + -5z2 = 0 Solving for variable 'z'. Factor a trinomial. (5 + -1z)(3 + 5z) = 0Subproblem 1
Set the factor '(5 + -1z)' equal to zero and attempt to solve: Simplifying 5 + -1z = 0 Solving 5 + -1z = 0 Move all terms containing z to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1z = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1z = 0 + -5 -1z = 0 + -5 Combine like terms: 0 + -5 = -5 -1z = -5 Divide each side by '-1'. z = 5 Simplifying z = 5Subproblem 2
Set the factor '(3 + 5z)' equal to zero and attempt to solve: Simplifying 3 + 5z = 0 Solving 3 + 5z = 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 + 5z = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 5z = 0 + -3 5z = 0 + -3 Combine like terms: 0 + -3 = -3 5z = -3 Divide each side by '5'. z = -0.6 Simplifying z = -0.6Solution
z = {5, -0.6}
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