Posted by Sherrie on Thursday, November 17, 2011 at 9:48am.
Start by changing "12 div. by 2" to 6 and
"8(5-3)to the second power" to 8*(2^2) = 32.
72Div.by9 x 4 to the second power =
8 x (4^2) = 8 x 16 = 128
You should be able to take it from there. Learn to use symbols instead of words when writing math expressions.
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