8z^2-28z=0

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Solution for 8z^2-28z=0 equation:


Simplifying
8z2 + -28z = 0

Reorder the terms:
-28z + 8z2 = 0

Solving
-28z + 8z2 = 0

Solving for variable 'z'.

Factor out the Greatest Common Factor (GCF), '4z'.
4z(-7 + 2z) = 0

Ignore the factor 4.

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 '(-7 + 2z)' equal to zero and attempt to solve: Simplifying -7 + 2z = 0 Solving -7 + 2z = 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 + 2z = 0 + 7 Combine like terms: -7 + 7 = 0 0 + 2z = 0 + 7 2z = 0 + 7 Combine like terms: 0 + 7 = 7 2z = 7 Divide each side by '2'. z = 3.5 Simplifying z = 3.5

Solution

z = {0, 3.5}

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