(7+2) ^ 2 - 2^3 =
Please explain how you got your answer.
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OpenStudy (anonymous):
ok....... (7+2) is what you do first cause its in ( )...so its 9...you are left with 9^2-2^2............Follow PEMDAS so 9^2 is 81....2^2 is 2.... so now you have 81+2..
OpenStudy (anonymous):
my bad its 81-2
OpenStudy (anonymous):
Are you completely sure? because if it's correct I'll get a A on my test thank you though!
OpenStudy (anonymous):
Hold up i read it wrong....
OpenStudy (anonymous):
9^2-2^3 so its 81-8
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OpenStudy (anonymous):
which is 73
OpenStudy (anonymous):
are you sure????
OpenStudy (anonymous):
YES
OpenStudy (anonymous):
i also did it on the calculator
OpenStudy (anonymous):
try doing it yourself if you dont feel comfortable...but yeah it should be right im a 4.0 student if that makes you feel anymore confident in the answer that i gave you lol
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OpenStudy (anonymous):
I used a calculator to and got the same answer so the answer is 9^2-2^3 = 73 right?
OpenStudy (anonymous):
correct
OpenStudy (anonymous):
is this order of operations? if so always follow PEMDAS parentheses exponent multiply divide add subtract!!!!!
OpenStudy (anonymous):
You have to do it in order!!!!
OpenStudy (anonymous):
an easy way to remember is Please Excuse My Dear Aunt Shaniqua....
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OpenStudy (anonymous):
Thanks you helped me so much and I learned something new @fluffly_pillow511