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Mathematics

1 answer:

jonny [76]4 years ago

5 0

1. u must simplify 3^2 first because the order of operations states that u have to do exponents before subtraction.

2. 12 - 3^2 = 81......she subtracted the 3 first....12 - 3^2 = 9^2 = 81...which is an incorrect answer

3. u do not divide before simplifying 3^2.....order of operations states that u have to do exponents before division

4. no.....(12 - 3)^2 ......order of operations states that u do parenthesis before exponents...so (12 - 3)^2 = 9^2 = 81

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