42t^2-17t-15=0

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Solution for 42t^2-17t-15=0 equation:


Simplifying
42t2 + -17t + -15 = 0

Reorder the terms:
-15 + -17t + 42t2 = 0

Solving
-15 + -17t + 42t2 = 0

Solving for variable 't'.

Factor a trinomial.
(-3 + -7t)(5 + -6t) = 0

Subproblem 1

Set the factor '(-3 + -7t)' equal to zero and attempt to solve: Simplifying -3 + -7t = 0 Solving -3 + -7t = 0 Move all terms containing t to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + -7t = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -7t = 0 + 3 -7t = 0 + 3 Combine like terms: 0 + 3 = 3 -7t = 3 Divide each side by '-7'. t = -0.4285714286 Simplifying t = -0.4285714286

Subproblem 2

Set the factor '(5 + -6t)' equal to zero and attempt to solve: Simplifying 5 + -6t = 0 Solving 5 + -6t = 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 + -6t = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -6t = 0 + -5 -6t = 0 + -5 Combine like terms: 0 + -5 = -5 -6t = -5 Divide each side by '-6'. t = 0.8333333333 Simplifying t = 0.8333333333

Solution

t = {-0.4285714286, 0.8333333333}

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