If q=2. Evaluate (34+18*q)-(5q+7)

Which geometric principle is used to justify the construction below?

36x2 + 49y2 = 1,764 the foci are located at: (-√13, 0) and (√13,0) (0, -√13) and (0,√13) (-1, 0) and (1, 0)edit: the answer is (- the square root of 13, 0) and (the square root of 13, 0)

One positive integer is 2 less than another. the product of the two integers is 24. what are the integers