8z^2+18z+9=

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Solution for 8z^2+18z+9= equation:


Simplifying
8z2 + 18z + 9 = 0

Reorder the terms:
9 + 18z + 8z2 = 0

Solving
9 + 18z + 8z2 = 0

Solving for variable 'z'.

Factor a trinomial.
(3 + 2z)(3 + 4z) = 0

Subproblem 1

Set the factor '(3 + 2z)' equal to zero and attempt to solve: Simplifying 3 + 2z = 0 Solving 3 + 2z = 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 + 2z = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 2z = 0 + -3 2z = 0 + -3 Combine like terms: 0 + -3 = -3 2z = -3 Divide each side by '2'. z = -1.5 Simplifying z = -1.5

Subproblem 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 = -0.75

Solution

z = {-1.5, -0.75}

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