If Josiah’s speed, in miles per minute, is constant, what is the constant of proportionality?

Write as a product of 2 binomials and a monomial (factor out as much as possible from each binomial). ! i do not understand, any is appreciated : ) whoever gets the best answer recieves brainliest and points! (4x–12x²)(16y³+12y²)

Having a hard time understanding this question (see attachment).

Which of the following equations is equivalent to x/3-6/x=1