3t^2+12t=135

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Solution for 3t^2+12t=135 equation:


Simplifying
3t2 + 12t = 135

Reorder the terms:
12t + 3t2 = 135

Solving
12t + 3t2 = 135

Solving for variable 't'.

Reorder the terms:
-135 + 12t + 3t2 = 135 + -135

Combine like terms: 135 + -135 = 0
-135 + 12t + 3t2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(-45 + 4t + t2) = 0

Factor a trinomial.
3((-9 + -1t)(5 + -1t)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-9 + -1t)' equal to zero and attempt to solve: Simplifying -9 + -1t = 0 Solving -9 + -1t = 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 + -1t = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -1t = 0 + 9 -1t = 0 + 9 Combine like terms: 0 + 9 = 9 -1t = 9 Divide each side by '-1'. t = -9 Simplifying t = -9

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 = {-9, 5}

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