400=5t^2+10t

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Solution for 400=5t^2+10t equation:


Simplifying
400 = 5t2 + 10t

Reorder the terms:
400 = 10t + 5t2

Solving
400 = 10t + 5t2

Solving for variable 't'.

Reorder the terms:
400 + -10t + -5t2 = 10t + -10t + 5t2 + -5t2

Combine like terms: 10t + -10t = 0
400 + -10t + -5t2 = 0 + 5t2 + -5t2
400 + -10t + -5t2 = 5t2 + -5t2

Combine like terms: 5t2 + -5t2 = 0
400 + -10t + -5t2 = 0

Factor out the Greatest Common Factor (GCF), '5'.
5(80 + -2t + -1t2) = 0

Factor a trinomial.
5((8 + -1t)(10 + t)) = 0

Ignore the factor 5.

Subproblem 1

Set the factor '(8 + -1t)' equal to zero and attempt to solve: Simplifying 8 + -1t = 0 Solving 8 + -1t = 0 Move all terms containing t to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + -1t = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -1t = 0 + -8 -1t = 0 + -8 Combine like terms: 0 + -8 = -8 -1t = -8 Divide each side by '-1'. t = 8 Simplifying t = 8

Subproblem 2

Set the factor '(10 + t)' equal to zero and attempt to solve: Simplifying 10 + t = 0 Solving 10 + t = 0 Move all terms containing t to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + t = 0 + -10 Combine like terms: 10 + -10 = 0 0 + t = 0 + -10 t = 0 + -10 Combine like terms: 0 + -10 = -10 t = -10 Simplifying t = -10

Solution

t = {8, -10}

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