One number is 10 less than twice a second number. Find a pair of such numbers so that their product is as small as possible.

These two numbers are_ and _. (Use a comma to separate your numbers.)
The smallest possible product is_.

The number are NOT 5,15 or 15 and 5

1 answer

Hmmm.

one number*second number=product.
(2S-10)S=product
2s^2-10s=product.
dp/ds= 4s-10=0
s=2.5 On number then is -5