Adding and Subtracting Rational Expressions - Item 33171Question 4 of 7
Nate found that the least common denominator needed to subtract 3xx2 − 25−1x − 5
is (x+5)(x−5)
. Which is a correct next step?


CLEAR CHECK

3x − 1x2 − x − 30

3x(x + 5)(x − 5)−1(x + 5)(x − 5)

3x(x + 5)(x − 5)−(x + 5)(x + 5)(x − 5)

(3x)(x + 5)(x − 5)(x + 5)(x − 5)−(x + 5)(x − 5)(x + 5)(x − 5)
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