Use the formula

In this case:

You should get -3 when you simplify further.
Answer:
8t(t - 5)^2
Step-by-step explanation:
I would immediately rearrange these terms in descending order by powers of t:
8t^3 - 80t^2 + 200t
Then I'd factor out 8t:
8t(t^2 - 10 t + 25).
Finally, I'd factor the quadratic t^2 - 10 t + 25:
(t - 5)^2
and so 200t+8t^3-80t^2 in factored form is 8t(t - 5)^2.
Her pay rate will be $10 dollars an hour,what she started with. We know this because she got a %10 increase but if the next month she has a %10 decrease then it’s the same as before.
(1/4 hour)/(1/12 lawn) = 3 hour/lawn
Selection D is appropriate.
Answer:
Please see the attached pictures for the full solution.