a is greater than b.
The sum of a and b is 11.
The difference between a and b is 8.

For positive constants a and b, the above statements are true. What is the value of a^2-b^2 ?


Comments (1)

why not do it the hard way and waste precious time?
a+b =11, a-b =8
a= 11-b , 8+b
11-b =8+b
b=1.5, so a = 9.5

9.5^2 =90.25
-1.5^2 = 2.25

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