12z^2-2z=80

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Solution for 12z^2-2z=80 equation:


Simplifying
12z2 + -2z = 80

Reorder the terms:
-2z + 12z2 = 80

Solving
-2z + 12z2 = 80

Solving for variable 'z'.

Reorder the terms:
-80 + -2z + 12z2 = 80 + -80

Combine like terms: 80 + -80 = 0
-80 + -2z + 12z2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-40 + -1z + 6z2) = 0

Factor a trinomial.
2((-5 + -2z)(8 + -3z)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-5 + -2z)' equal to zero and attempt to solve: Simplifying -5 + -2z = 0 Solving -5 + -2z = 0 Move all terms containing z to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + -2z = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -2z = 0 + 5 -2z = 0 + 5 Combine like terms: 0 + 5 = 5 -2z = 5 Divide each side by '-2'. z = -2.5 Simplifying z = -2.5

Subproblem 2

Set the factor '(8 + -3z)' equal to zero and attempt to solve: Simplifying 8 + -3z = 0 Solving 8 + -3z = 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 + -3z = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -3z = 0 + -8 -3z = 0 + -8 Combine like terms: 0 + -8 = -8 -3z = -8 Divide each side by '-3'. z = 2.666666667 Simplifying z = 2.666666667

Solution

z = {-2.5, 2.666666667}

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