=-5t^2+20t

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Solution for =-5t^2+20t equation:


Simplifying
0 = -5t2 + 20t

Reorder the terms:
0 = 20t + -5t2

Solving
0 = 20t + -5t2

Solving for variable 't'.
Remove the zero:
-20t + 5t2 = 20t + -5t2 + -20t + 5t2

Reorder the terms:
-20t + 5t2 = 20t + -20t + -5t2 + 5t2

Combine like terms: 20t + -20t = 0
-20t + 5t2 = 0 + -5t2 + 5t2
-20t + 5t2 = -5t2 + 5t2

Combine like terms: -5t2 + 5t2 = 0
-20t + 5t2 = 0

Factor out the Greatest Common Factor (GCF), '5t'.
5t(-4 + t) = 0

Ignore the factor 5.

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 '(-4 + t)' equal to zero and attempt to solve: Simplifying -4 + t = 0 Solving -4 + t = 0 Move all terms containing t to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + t = 0 + 4 Combine like terms: -4 + 4 = 0 0 + t = 0 + 4 t = 0 + 4 Combine like terms: 0 + 4 = 4 t = 4 Simplifying t = 4

Solution

t = {0, 4}

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