Question

The sum of two unknown numbers is -40. The difference of those same two numbers is 25. What is the product of those two unknown numbers?

Answer 1

Answer: 243.75

Step-by-step explanation:

Let the numbers be x and y

x+y = -40 …(1)

x-y = 25…(2)

Add (1) and (2) using the elimnation method

2x=-15

x=--15/2 = -7.5

-15/2-y=25

y=-65/2 = -32.5

The product of the two numbers = xy = -7.5*-32.5 = 243.75