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Some examples of situations where parentheses are often necessary include:
- Around an exponent
- Around the numerator and/or the denominator of a fraction
- Around an expression contained within a radical or power
- Around a negative number when raised to a power
The best way to become proficient in entering expressions is to practice! Always check to see
that your answer is reasonable. Estimate of what kind of answer you expect, then verify that the
result provided by the calculator is "within the ballpark". Don't assume the
calculator can read your mind; the expression you entered may NOT be the same as the expression
you INTENDED to enter! |
