Question

15. The number x is 2 more than the number y. If
the sum of the squares of x and y is 34; find
the product of x and y.

Answer 1

Answer:

Given

    x = y + 2

      x² + y² = 34

    x - y = 2

  Squaring,  (x - y)² = 2²

            x² + y² - 2 x y = 4

            34 - 2 x y = 4

              x y = 15

Hope this helps....