Question 1140722
When the sum of two whole numbers is multiplied by the difference of the numbers, the result is 85. 
If the difference of the two numbers is not 1 what is the sum 
(a+b)*(a-b) = 85
FOIL
a^2 - b^2 = 85
a^2 = b^2 + 85
a = {{{sqrt(b^2+85)}}}
first integer solution
a = 11; b=6
"What is the sum"
11 + 6 = 17
:
:
Check
17 * 5 = 85