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0
691
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avatar+1090 

How do I solve this:

2{4^3 - 6[4 - (2-4)] - 3}

Does "{}", "[]", or "()" have any special meaning?

According to the answer key on my Math UIL Test, the answer is 50.

 Nov 15, 2014

Best Answer 

 #1
avatar+129852 
+10

2{4^3 - 6[4 - (2-4)] - 3}    simplify

2{64 - 6[4 - (-2)] - 3}

2{64 - 6[4 + 2] - 3}

2{64 - 6[6] - 3}

2{64 - 36 - 3}

2{28 - 3}

2{25}

50

Note....parentheses, brackets and braces are all the same in these operations....we could have used any combination of them.....

 

 Nov 15, 2014
 #1
avatar+129852 
+10
Best Answer

2{4^3 - 6[4 - (2-4)] - 3}    simplify

2{64 - 6[4 - (-2)] - 3}

2{64 - 6[4 + 2] - 3}

2{64 - 6[6] - 3}

2{64 - 36 - 3}

2{28 - 3}

2{25}

50

Note....parentheses, brackets and braces are all the same in these operations....we could have used any combination of them.....

 

CPhill Nov 15, 2014
 #2
avatar+1090 
0

I must have had a calculations error...

 Nov 15, 2014

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