400=160t-16t^2

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Solution for 400=160t-16t^2 equation:


Simplifying
400 = 160t + -16t2

Solving
400 = 160t + -16t2

Solving for variable 't'.

Reorder the terms:
400 + -160t + 16t2 = 160t + -160t + -16t2 + 16t2

Combine like terms: 160t + -160t = 0
400 + -160t + 16t2 = 0 + -16t2 + 16t2
400 + -160t + 16t2 = -16t2 + 16t2

Combine like terms: -16t2 + 16t2 = 0
400 + -160t + 16t2 = 0

Factor out the Greatest Common Factor (GCF), '16'.
16(25 + -10t + t2) = 0

Factor a trinomial.
16((5 + -1t)(5 + -1t)) = 0

Ignore the factor 16.

Subproblem 1

Set the factor '(5 + -1t)' equal to zero and attempt to solve: Simplifying 5 + -1t = 0 Solving 5 + -1t = 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 + -1t = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1t = 0 + -5 -1t = 0 + -5 Combine like terms: 0 + -5 = -5 -1t = -5 Divide each side by '-1'. t = 5 Simplifying t = 5

Subproblem 2

Set the factor '(5 + -1t)' equal to zero and attempt to solve: Simplifying 5 + -1t = 0 Solving 5 + -1t = 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 + -1t = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1t = 0 + -5 -1t = 0 + -5 Combine like terms: 0 + -5 = -5 -1t = -5 Divide each side by '-1'. t = 5 Simplifying t = 5

Solution

t = {5, 5}

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