Maintaining Mathematical Proficiency
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Pay close attention to the order of operations.
- 9
According to the order of operations, we must remember to evaluate the exponent first, division and multiplication next, and addition and subtraction last. Let's do it for the given expression!
| Operation | Before Simplification | After Simplification |
|---|---|---|
| Calculate power | 12( 14/2)-3^3+15 -9^2 | 12( 14/2)- 27+15 - 81 |
| Calculate quotient | 12 ( 14/2)-27+15-81 | 12( 7)-27+15-81 |
| Multiply | 12 ( 7)-27+15-81 | 84-27+15-81 |
| Subtract term | 84- 27+15-81 | 57+15-81 |
| Add terms | 57+ 15-81 | 72-81 |
| Subtract term | 72- 81 | - 9 |
The expression equals - 9.
