(t + 3)(t - 15)
Ask yourself, what factors of - 45 add up to - 12 ?
t = - 3
t = 15
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Unfortunately, limitations of the browser used by Answers.com means that we cannot see most symbols. It is therefore impossible to give a proper answer to your question. Please resubmit your question spelling out the symbols as "plus", "minus", "equals", "squared", "cubed" etc. As it is now, there is no equation, only an expression without any symbol between 34 and 4t.
If you mean: 9t^2 +12t +4 then it is (3t+2)(3t+2) when factored
The answer is 55 + 12t.
12t + 15
Divide all terms by -1: 5t2-12t-9 = 0 (5t+3)(3t-3) = 0 Therefore: t = -3/5 and t = 3 Use the quadratic equation formula.