(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Solve using the formula method.

2. Relevant equations

[itex]3t^2+7t=5[/itex]

3. The attempt at a solution

[itex] 3t^2+7t-5=0

t= \frac{-7 +or-\sqrt{7^2-4(3)(-5)}}{2(3)}

t= \frac{-7+\sqrt{109}}{4}

t= -4.39

[/itex] OR...

[itex]t= \frac{-7-\sqrt{109}}{4}

t= -9.61 [/itex]

The reason I have doubts is because the answer book from the tutor shows, T= 0.573 or -2.907... ? :(

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# Homework Help: Quadratic Equation (Check my Workings ?)

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