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43 votes
I don’t get the first part at all

I don’t get the first part at all-example-1
User Qwr
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1 Answer

22 votes
22 votes

Answer:

Explanation:

This is

96/8 + { 2(5-7)^2 + 4 }

96/8 is 96 divided by 8, and that is 12. (All fractions are really division.)

So now we have 12 + { 2(5-7) }^2 + 4 }

For the order of operation, we use PEMDAS (Please excuse my dear Aunt Sally) to remember the order in which we do things - Parentheses, Exponents, Multiplication and Division, Addition and Subtraction.

When we have multiple parentheses (or other grouping symbols like square brackets), we work from the inside out.

Inside all that stuff on the right, the innermost set of parentheses is (5-7), which is just 2. So now we have

12 + { 2*2^2 + 4 }

We read what is inside the parentheses as '2 times 2-raised-to-the-second-power, plus 4'

Inside these parenthese, there are no additional parentheses. So we must take care of the 'E' in PEMDAS, the exponent. 2^2 = 2-squared, which is 4. So now we have

12 + { 2*4 + 4}. Two times 4 is 8.

12 + {8 + 4}

8+4 = 12, so we get

12+12

And 12+12 = 24.

I hope this helps.

User Figaro
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