Answer: 10 - 2√21
Step-by-step explanation: I simplified your question by using an online calculator. :)
Because you have to go in the order of PEMDAS, parenthesis, exponents, multiplication, division, addition, and subtraction. From what you are saying, 'why you must simplify 3 to the second power first' it seems that you have no parenthesis, so you move onto what is next, which is exponents, in this case, 3 to the power of two.
The answer is 3. I hope this helps :))
Answer:
45 hihihihihihihihihihihihih
Step-by-step explanation:
Answer: 3.4
Step-by-step explanation:
i got this problem on delta math
