Section: Mathematical Reasoning

7) Using order of operations, solve for the following when x=3, y=-3, and z=5: 

-3xy2 -z
3
 xz

Explanation

When performing order of operations, remember PEMDAS:
  1. Parentheses
  2. Exponents
  3. Multiplication
  4. Division
  5. Addition
  6. Subtraction
Follow that, and you'll get -56, after plugging in the variable numbers, of course.


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