18 miles to 18 yards to a fraction do i divided ?

What is the binomial expansion of (2x-3)^5

Identify the converse of the following conditional: if a point is in the first quadrant, then its coordinates are positive. if the coordinates of a point are not positive, then the point is not in the first quadrant. if the coordinates of a point are positive, then the point is in the first quadrant. if a point is in the first quadrant, then its coordinates are positive. if a point is not in the first quadrant, then the coordinates of the point are not positive.

Which is f(5) for the function –2x2 + 2x - 3?