SOLUTION: (-4.2)^2 I get 17.64, but the book says the correct answer is 16.81

Algebra ->  Exponents -> SOLUTION: (-4.2)^2 I get 17.64, but the book says the correct answer is 16.81      Log On


   

Question 561035: (-4.2)^2
I get 17.64, but the book says the correct answer is 16.81
Found 2 solutions by jim_thompson5910, richard1234:
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
You are correct. I can tell right off the bat that you are correct (or at least more correct) since the units digit is correct. The answer choice's units digit is way off.

Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
(-4.1)^2 = 16.81.

(-4.2)^2 = 17.64.