84=10t+16t^2

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Solution for 84=10t+16t^2 equation:


Simplifying
84 = 10t + 16t2

Solving
84 = 10t + 16t2

Solving for variable 't'.

Reorder the terms:
84 + -10t + -16t2 = 10t + -10t + 16t2 + -16t2

Combine like terms: 10t + -10t = 0
84 + -10t + -16t2 = 0 + 16t2 + -16t2
84 + -10t + -16t2 = 16t2 + -16t2

Combine like terms: 16t2 + -16t2 = 0
84 + -10t + -16t2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(42 + -5t + -8t2) = 0

Factor a trinomial.
2((2 + -1t)(21 + 8t)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(2 + -1t)' equal to zero and attempt to solve: Simplifying 2 + -1t = 0 Solving 2 + -1t = 0 Move all terms containing t to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1t = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1t = 0 + -2 -1t = 0 + -2 Combine like terms: 0 + -2 = -2 -1t = -2 Divide each side by '-1'. t = 2 Simplifying t = 2

Subproblem 2

Set the factor '(21 + 8t)' equal to zero and attempt to solve: Simplifying 21 + 8t = 0 Solving 21 + 8t = 0 Move all terms containing t to the left, all other terms to the right. Add '-21' to each side of the equation. 21 + -21 + 8t = 0 + -21 Combine like terms: 21 + -21 = 0 0 + 8t = 0 + -21 8t = 0 + -21 Combine like terms: 0 + -21 = -21 8t = -21 Divide each side by '8'. t = -2.625 Simplifying t = -2.625

Solution

t = {2, -2.625}

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