https://www.gregmat.com/quizzes/quiz/prepswift-arithmetic-operations (Question 3)
write your question here…please explain the differnce the parethesis does, and how we can use calculator on the exam to help us
Not much difference in this specific case. The parenthesis becomes important when the number is negative or power to a power
If you mean on this very question, you don’t necessarily need the calculator but you can use it by
- Finding √5,
- Add it to the memory of the calculator.
- Find √5 again
- Multiply by the √5 in the memory of the calculator.
Of course, you don’t have to do all this because √5 = 5^{0.5}. So (√5)² = 5m
If you meant something else, lemme know.