0=180t-9t^2

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Solution for 0=180t-9t^2 equation:


Simplifying
0 = 180t + -9t2

Solving
0 = 180t + -9t2

Solving for variable 't'.
Remove the zero:
-180t + 9t2 = 180t + -9t2 + -180t + 9t2

Reorder the terms:
-180t + 9t2 = 180t + -180t + -9t2 + 9t2

Combine like terms: 180t + -180t = 0
-180t + 9t2 = 0 + -9t2 + 9t2
-180t + 9t2 = -9t2 + 9t2

Combine like terms: -9t2 + 9t2 = 0
-180t + 9t2 = 0

Factor out the Greatest Common Factor (GCF), '9t'.
9t(-20 + t) = 0

Ignore the factor 9.

Subproblem 1

Set the factor 't' equal to zero and attempt to solve: Simplifying t = 0 Solving t = 0 Move all terms containing t to the left, all other terms to the right. Simplifying t = 0

Subproblem 2

Set the factor '(-20 + t)' equal to zero and attempt to solve: Simplifying -20 + t = 0 Solving -20 + t = 0 Move all terms containing t to the left, all other terms to the right. Add '20' to each side of the equation. -20 + 20 + t = 0 + 20 Combine like terms: -20 + 20 = 0 0 + t = 0 + 20 t = 0 + 20 Combine like terms: 0 + 20 = 20 t = 20 Simplifying t = 20

Solution

t = {0, 20}

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