Question

Please answer only question I can't figure out!!!! 8^2+9(12/3x2)-7 pleaseee show steps and the -7 at the end is a negative 7

Answer 1

Just to clarify is it this?
\[8^{2}+9(\frac{ 12 }{ 3x ^{2} })(-7)\]

Answer 2

\[8^{2}+9(12\div3\times2)-7\]

Answer 3

Okay so when doing this problem you have to always remember the PEMDAS with means Parenthesis, Exponent, Multiplication or Division, Adding or Subtracting. You also have to keep in mind that when multiplying, dividing, adding, and subtracting you have to do what comes FIRST... Example 37-2+7 you see that subtraction comes first but you would think "oh wait PEMDAS says to add first" Nope you do whichever comes firstttttt. So 37-2 is 35 then you add 35+7 is 42.



Now for you question
8^2 + 9 * (12/3 * 2) - 7 <--- First thing that PEMDAS is Parenthesis. But oh wait there are both division and multiplication, which one comes first? Division, so you go that

8^2 + 9 * (4*2) -7 <--- Go ahead and multiply now whats still inside the parenthesis

8^2 + 9 * 8 - 7 <--- Next is the exponents, you gotta remember that 8 to the second power is not 8*2 its 8*8

64 + 9 * 8 - 7 <--- Since there isn't division, just go and multiply 9*8

64 + 72 - 7 <--- I see addition first! So add 64 + 72

136 - 7 <--- Lastly subtract

129 <--- That is your answer :) Hope this helped