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Simplifying (2 + z)(3z + 7) = 0 Reorder the terms: (2 + z)(7 + 3z) = 0 Multiply (2 + z) * (7 + 3z) (2(7 + 3z) + z(7 + 3z)) = 0 ((7 * 2 + 3z * 2) + z(7 + 3z)) = 0 ((14 + 6z) + z(7 + 3z)) = 0 (14 + 6z + (7 * z + 3z * z)) = 0 (14 + 6z + (7z + 3z2)) = 0 Combine like terms: 6z + 7z = 13z (14 + 13z + 3z2) = 0 Solving 14 + 13z + 3z2 = 0 Solving for variable 'z'. Factor a trinomial. (7 + 3z)(2 + z) = 0Subproblem 1
Set the factor '(7 + 3z)' equal to zero and attempt to solve: Simplifying 7 + 3z = 0 Solving 7 + 3z = 0 Move all terms containing z to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + 3z = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 3z = 0 + -7 3z = 0 + -7 Combine like terms: 0 + -7 = -7 3z = -7 Divide each side by '3'. z = -2.333333333 Simplifying z = -2.333333333Subproblem 2
Set the factor '(2 + z)' equal to zero and attempt to solve: Simplifying 2 + z = 0 Solving 2 + z = 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 + z = 0 + -2 Combine like terms: 2 + -2 = 0 0 + z = 0 + -2 z = 0 + -2 Combine like terms: 0 + -2 = -2 z = -2 Simplifying z = -2Solution
z = {-2.333333333, -2}
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