Question

A train travels at a rate of (5x+2)miles per hour.how many miles can it travel at that rate in (x-3)hours

Answer 1

Step-by-step explanation:

In 1 hour it travels (5x+2) miles.

In (x-3) hours it travels = (5x+2)(x-3)

= 5x(x-3)+2(x-3)

= 5x²-15x+2x-6

= 5x²-13x-6 miles.