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the question is Bianca entered 52+8x2 and got 120 how?

 Feb 11, 2016
 #1
avatar+118667 
+5

52+8x^2=120

 

\(52+8x^2=120\\ 8x^2=68\\ x^2=68/6\\ x^2=34/3\\ x=\pm\sqrt{34/3}\)

 Feb 11, 2016
 #2
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ianca entered 52 + 8 x 2 = in her calculator. She got the answer 120. In what order did Bianca's calculator perform the operations? Ho do you know?

 Sep 29, 2016
 #3
avatar+9673 
0

Her calculator only perform calculations from left to right. It doesn't use BODMAS or PEDMAS.

This is what her calculator does.

52 + 8 x 2

= 60 x 2

= 120

 Sep 29, 2016

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