SOLUTION: if a-b=3 an a2-b2= 36, then find the sum of both the variables of a and b.

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Question 946429: if a-b=3 an a2-b2= 36, then find the sum of both the variables of a and b.
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
hint: a^2 - b^2 = (a-b)(a+b)

so

a^2 - b^2 = 36

(a-b)(a+b) = 36