z^3-z^2=56z

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Solution for z^3-z^2=56z equation:


Simplifying
z3 + -1z2 = 56z

Reorder the terms:
-1z2 + z3 = 56z

Solving
-1z2 + z3 = 56z

Solving for variable 'z'.

Reorder the terms:
-56z + -1z2 + z3 = 56z + -56z

Combine like terms: 56z + -56z = 0
-56z + -1z2 + z3 = 0

Factor out the Greatest Common Factor (GCF), 'z'.
z(-56 + -1z + z2) = 0

Factor a trinomial.
z((-7 + -1z)(8 + -1z)) = 0

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 + -1z)' equal to zero and attempt to solve: Simplifying -7 + -1z = 0 Solving -7 + -1z = 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 + -1z = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -1z = 0 + 7 -1z = 0 + 7 Combine like terms: 0 + 7 = 7 -1z = 7 Divide each side by '-1'. z = -7 Simplifying z = -7

Subproblem 3

Set the factor '(8 + -1z)' equal to zero and attempt to solve: Simplifying 8 + -1z = 0 Solving 8 + -1z = 0 Move all terms containing z to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + -1z = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -1z = 0 + -8 -1z = 0 + -8 Combine like terms: 0 + -8 = -8 -1z = -8 Divide each side by '-1'. z = 8 Simplifying z = 8

Solution

z = {0, -7, 8}

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