JackIsBack220 JackIsBack220

19-09-2017
Mathematics

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simplify the expression 8^2 +9(12÷3*2) - 7 explain each of your steps.

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musiclover10045 musiclover10045

19-09-2017

8^2+9(12/3*2)-7

do parenthesis first ( from left to right)

8^2 +9(8)-7

do the ^2 and the multiplication next

64 +72 -7

do addition then subtraction

136-7 = 129

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