-4(z+6)(-z+2)=0

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Solution for -4(z+6)(-z+2)=0 equation:


Simplifying
-4(z + 6)(-1z + 2) = 0

Reorder the terms:
-4(6 + z)(-1z + 2) = 0

Reorder the terms:
-4(6 + z)(2 + -1z) = 0

Multiply (6 + z) * (2 + -1z)
-4(6(2 + -1z) + z(2 + -1z)) = 0
-4((2 * 6 + -1z * 6) + z(2 + -1z)) = 0
-4((12 + -6z) + z(2 + -1z)) = 0
-4(12 + -6z + (2 * z + -1z * z)) = 0
-4(12 + -6z + (2z + -1z2)) = 0

Combine like terms: -6z + 2z = -4z
-4(12 + -4z + -1z2) = 0
(12 * -4 + -4z * -4 + -1z2 * -4) = 0
(-48 + 16z + 4z2) = 0

Solving
-48 + 16z + 4z2 = 0

Solving for variable 'z'.

Factor out the Greatest Common Factor (GCF), '4'.
4(-12 + 4z + z2) = 0

Factor a trinomial.
4((-6 + -1z)(2 + -1z)) = 0

Ignore the factor 4.

Subproblem 1

Set the factor '(-6 + -1z)' equal to zero and attempt to solve: Simplifying -6 + -1z = 0 Solving -6 + -1z = 0 Move all terms containing z to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + -1z = 0 + 6 Combine like terms: -6 + 6 = 0 0 + -1z = 0 + 6 -1z = 0 + 6 Combine like terms: 0 + 6 = 6 -1z = 6 Divide each side by '-1'. z = -6 Simplifying z = -6

Subproblem 2

Set the factor '(2 + -1z)' equal to zero and attempt to solve: Simplifying 2 + -1z = 0 Solving 2 + -1z = 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 + -1z = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1z = 0 + -2 -1z = 0 + -2 Combine like terms: 0 + -2 = -2 -1z = -2 Divide each side by '-1'. z = 2 Simplifying z = 2

Solution

z = {-6, 2}

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