SOLUTION: I really can't figure out how the answer is 16. Can you help, please? 8+2 √5² - 3² That is 5 squared - 3 squared. 5 squared = 25 3 squared = 9 so 25 - 9 = 16 but

Algebra ->  Square-cubic-other-roots -> SOLUTION: I really can't figure out how the answer is 16. Can you help, please? 8+2 √5² - 3² That is 5 squared - 3 squared. 5 squared = 25 3 squared = 9 so 25 - 9 = 16 but       Log On


   

Question 201429This question is from textbook Algebra for college students
: I really can't figure out how the answer is 16. Can you help, please?
8+2 √5² - 3²
That is 5 squared - 3 squared.
5 squared = 25 3 squared = 9 so 25 - 9 = 16 but what is to be done with the 8 + 2 in the beginning?
Thanks for your help - Jamie This question is from textbook Algebra for college students

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
8+2 √(9² - 3²)
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= 8 + 2*Sqrt(16)
= 8 + 2*4
= 8 + 8
= 16
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Cheers,
Stan H.