Describe the relationship between the base and the exponents in 6 to the 3rd power

The amount of energy it takes to lift a box might be a function of which of the following

What expression is equivalent to (2x-1)(x-3)?

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?