200=-16t^2+112t+20

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Solution for 200=-16t^2+112t+20 equation:


Simplifying
200 = -16t2 + 112t + 20

Reorder the terms:
200 = 20 + 112t + -16t2

Solving
200 = 20 + 112t + -16t2

Solving for variable 't'.

Combine like terms: 200 + -20 = 180
180 + -112t + 16t2 = 20 + 112t + -16t2 + -20 + -112t + 16t2

Reorder the terms:
180 + -112t + 16t2 = 20 + -20 + 112t + -112t + -16t2 + 16t2

Combine like terms: 20 + -20 = 0
180 + -112t + 16t2 = 0 + 112t + -112t + -16t2 + 16t2
180 + -112t + 16t2 = 112t + -112t + -16t2 + 16t2

Combine like terms: 112t + -112t = 0
180 + -112t + 16t2 = 0 + -16t2 + 16t2
180 + -112t + 16t2 = -16t2 + 16t2

Combine like terms: -16t2 + 16t2 = 0
180 + -112t + 16t2 = 0

Factor out the Greatest Common Factor (GCF), '4'.
4(45 + -28t + 4t2) = 0

Factor a trinomial.
4((5 + -2t)(9 + -2t)) = 0

Ignore the factor 4.

Subproblem 1

Set the factor '(5 + -2t)' equal to zero and attempt to solve: Simplifying 5 + -2t = 0 Solving 5 + -2t = 0 Move all terms containing t to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -2t = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -2t = 0 + -5 -2t = 0 + -5 Combine like terms: 0 + -5 = -5 -2t = -5 Divide each side by '-2'. t = 2.5 Simplifying t = 2.5

Subproblem 2

Set the factor '(9 + -2t)' equal to zero and attempt to solve: Simplifying 9 + -2t = 0 Solving 9 + -2t = 0 Move all terms containing t to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -2t = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -2t = 0 + -9 -2t = 0 + -9 Combine like terms: 0 + -9 = -9 -2t = -9 Divide each side by '-2'. t = 4.5 Simplifying t = 4.5

Solution

t = {2.5, 4.5}

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