1. Create an expression, in the form xn ‒ an, by substituting integers for a & n. (Note: Choose an n>3 and an a>2) Divide your expression by x ‒ a. Explain how a polynomial identity helped you find the quotient. Specifically, mention the pattern you followed for the coefficients and exponents of each term in the quotient. 2. Write the expression in simplest radical form.

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.

irrational, cannot