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Add & subtract rational expressions: like denominators

Min-Jun and Harry were each asked to perform the following operation:
k24k+4k234k\dfrac{k^2}{4k}+\dfrac{4k^2-3}{4k}
Their answers are shown below:
Min-JunHarry
5k234k\dfrac{5k^2-3}{4k}5k434k\dfrac{5k^4-3}{4k}
Which student is correct?
Choose 1 answer:
Choose 1 answer: