z(z+9)(4z+2)=0

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Solution for z(z+9)(4z+2)=0 equation:


Simplifying
z(z + 9)(4z + 2) = 0

Reorder the terms:
z(9 + z)(4z + 2) = 0

Reorder the terms:
z(9 + z)(2 + 4z) = 0

Multiply (9 + z) * (2 + 4z)
z(9(2 + 4z) + z(2 + 4z)) = 0
z((2 * 9 + 4z * 9) + z(2 + 4z)) = 0
z((18 + 36z) + z(2 + 4z)) = 0
z(18 + 36z + (2 * z + 4z * z)) = 0
z(18 + 36z + (2z + 4z2)) = 0

Combine like terms: 36z + 2z = 38z
z(18 + 38z + 4z2) = 0
(18 * z + 38z * z + 4z2 * z) = 0
(18z + 38z2 + 4z3) = 0

Solving
18z + 38z2 + 4z3 = 0

Solving for variable 'z'.

Factor out the Greatest Common Factor (GCF), '2z'.
2z(9 + 19z + 2z2) = 0

Factor a trinomial.
2z((9 + z)(1 + 2z)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor 'z' equal to zero and attempt to solve: Simplifying z = 0 Solving z = 0 Move all terms containing z to the left, all other terms to the right. Simplifying z = 0

Subproblem 2

Set the factor '(9 + z)' equal to zero and attempt to solve: Simplifying 9 + z = 0 Solving 9 + z = 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 + z = 0 + -9 Combine like terms: 9 + -9 = 0 0 + z = 0 + -9 z = 0 + -9 Combine like terms: 0 + -9 = -9 z = -9 Simplifying z = -9

Subproblem 3

Set the factor '(1 + 2z)' equal to zero and attempt to solve: Simplifying 1 + 2z = 0 Solving 1 + 2z = 0 Move all terms containing z to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + 2z = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 2z = 0 + -1 2z = 0 + -1 Combine like terms: 0 + -1 = -1 2z = -1 Divide each side by '2'. z = -0.5 Simplifying z = -0.5

Solution

z = {0, -9, -0.5}

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