Answer:
12 - 16c^2d + 4c^4d
Step-by-step explanation:
(3 - c^2d)(4 - 4c^2d)
Distributive
12 - 12c^d - 4c^2d + 4c^4d^2
Combine like terms
12 - 16c^2d + 4c^4d^2
I don't understand your question
258 km
We can calculate the speed of the boat with (333km/7 hours) = 47.57 km/hr.
Assuming the same speed, the boat would travel (47.57 km/hr)*(6 hr) = 258 km
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