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.
Answer:
no answer. Because 8-4 is not equal to 12
Step-by-step explanation:
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srry
Step-by-step explanation:
Answer:
I think the 3rd one
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Hope its right
The answer would be: t= -5/4