Answer:
Let the two numbers be x and y.
Then x + y = 20, and y = 20 - x.
Their product is what you get when you multiply the two numbers together, in other words xy, or x(20 - x). You can expand this out to get 20x - x².
The product of the two numbers will be maximum at the value
Step-by-step explanation:
sorry if this didn't help
