30y^2-102y-240=0

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Solution for 30y^2-102y-240=0 equation:


Simplifying
30y2 + -102y + -240 = 0

Reorder the terms:
-240 + -102y + 30y2 = 0

Solving
-240 + -102y + 30y2 = 0

Solving for variable 'y'.

Factor out the Greatest Common Factor (GCF), '6'.
6(-40 + -17y + 5y2) = 0

Factor a trinomial.
6((-8 + -5y)(5 + -1y)) = 0

Ignore the factor 6.

Subproblem 1

Set the factor '(-8 + -5y)' equal to zero and attempt to solve: Simplifying -8 + -5y = 0 Solving -8 + -5y = 0 Move all terms containing y to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + -5y = 0 + 8 Combine like terms: -8 + 8 = 0 0 + -5y = 0 + 8 -5y = 0 + 8 Combine like terms: 0 + 8 = 8 -5y = 8 Divide each side by '-5'. y = -1.6 Simplifying y = -1.6

Subproblem 2

Set the factor '(5 + -1y)' equal to zero and attempt to solve: Simplifying 5 + -1y = 0 Solving 5 + -1y = 0 Move all terms containing y to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1y = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1y = 0 + -5 -1y = 0 + -5 Combine like terms: 0 + -5 = -5 -1y = -5 Divide each side by '-1'. y = 5 Simplifying y = 5

Solution

y = {-1.6, 5}

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