Simplify: 32×3−15−2×20 Adam wrote: 3−2×522 Nick wrote: 3×52 Shane wrote: 3−352 Who was correct and why? (1 point) Responses None of these are correct because the students did not add the exponents in the numerator and then subtract exponents since there is division. None of these are correct because the students did not add the exponents in the numerator and then subtract exponents since there is division. Adam is correct because the negative exponent combines with the base and the denominator moves to the numerator. Adam is correct because the negative exponent combines with the base and the denominator moves to the numerator. Shane is correct because all that needs to be done is to make the negative exponents positive. Shane is correct because all that needs to be done is to make the negative exponents positive. Nick is correct because the negative exponent in the numerator can combine with the like base and the denominator negative exponent goes to the numerator

None of these students are correct because they did not simplify the expression correctly. To simplify the expression 32×3−15−2×20, we need to apply the Order of Operations, which is parentheses, exponents, multiplication and division (from left to right), and addition and subtraction (from left to right).

First, we simplify the exponents:
32×3 = 3^2 × 3 = 9 × 3 = 27
2×20 = 2 × 20 = 40

Next, we perform the multiplication and subtraction:
27 - 15 - 40 = -28

Therefore, the correct simplified expression is -28.