15t^2-17t-4=0

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Solution for 15t^2-17t-4=0 equation:


Simplifying
15t2 + -17t + -4 = 0

Reorder the terms:
-4 + -17t + 15t2 = 0

Solving
-4 + -17t + 15t2 = 0

Solving for variable 't'.

Factor a trinomial.
(-1 + -5t)(4 + -3t) = 0

Subproblem 1

Set the factor '(-1 + -5t)' equal to zero and attempt to solve: Simplifying -1 + -5t = 0 Solving -1 + -5t = 0 Move all terms containing t to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + -5t = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -5t = 0 + 1 -5t = 0 + 1 Combine like terms: 0 + 1 = 1 -5t = 1 Divide each side by '-5'. t = -0.2 Simplifying t = -0.2

Subproblem 2

Set the factor '(4 + -3t)' equal to zero and attempt to solve: Simplifying 4 + -3t = 0 Solving 4 + -3t = 0 Move all terms containing t to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -3t = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -3t = 0 + -4 -3t = 0 + -4 Combine like terms: 0 + -4 = -4 -3t = -4 Divide each side by '-3'. t = 1.333333333 Simplifying t = 1.333333333

Solution

t = {-0.2, 1.333333333}

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