Answer:
t = 5, 6
Explanation:
Given the equation:

First, arrange the expression in the standard quadratic form ax² + bx + c = 0

Then factor the expression, find two numbers that add up which result in -11 and multiply which result in 30 - that two numbers are -6 and -5

Solve like a linear equation

Therefore, the solutions to the equation are t = 5, 6