Answer:
22
Step-by-step explanation:
The product of a sum and difference is the difference of squares:
a^2 -b^2 = (a +b)(a -b)
Here, we have ...
a = 3√3
b = √5
so the product is ...
(3√3)^2 -(√5)^ = 27 -5 = 22
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You can check this on your calculator.
