The sum of two numbers is 15.
The difference of the same two numbers is 3.
What is the product of the two numbers?
You must show your working out.

Respuesta :

x + y = 15
x - y =3

First you have to work out what two numbers add together to make 15, for example 1 and 14 or 5 and 10. 
Then you have to work out which set of numbers have a difference of 3.
The numbers would be 6 and 9.

Once you have the two numbers, multiply them together:
6 x 9 = 54