According to the order of operations, expressions inside parentheses are evaluated first, while addition and subtraction are evaluated last.
3-(1.5)^2
For this, we must remember to evaluate the exponent first, and the subtraction next.
Operation
Before Simplification
After Simplification
Calculate power
3-(1.5)^2
3- 2.25
Subtract term
3- 2.25
0.75
The expression equals 0.75.
Alternative Solution
Using a Calculator
We can also evaluate this expression using a calculator. To do so, type it as shown below.
