SOLUTION: The sum of 2 numbers is 15 and their difference is 6. Find the difference of their squares.

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: The sum of 2 numbers is 15 and their difference is 6. Find the difference of their squares.      Log On


   



Question 1144450: The sum of 2 numbers is 15 and their difference is 6.
Find the difference of their squares.

Found 2 solutions by Alan3354, josgarithmetic:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
The sum of 2 numbers is 15 and their difference is 6.
Find the difference of their squares.
---------
a^2 - b^2 = (a-b)*(a+b) = 90

Answer by josgarithmetic(39620) About Me  (Show Source):