Final answer:
In polynomial subtraction, we subtract the coefficients of like terms. If the two polynomials have the same degree and the coefficients of their like terms are different, neither is correct. Option d is correct.
Step-by-step explanation:
In polynomial subtraction, both Malachi and Shania are incorrect because they did not consider the least common multiple (LCM) of the terms being subtracted.
By finding the LCM, you can ensure that the subtraction is carried out accurately.
- First, factor the terms being subtracted.
- Find the LCM of the factored terms.
- Divide each term by the LCM and multiply by the other term's LCM.
- Finally, subtract the resulting terms.
Therefore, the correct answer can be found by performing these steps and applying the LCM correctly.
Option d. Neither is correct .