Understanding Rational Functions

What is the key requirement when adding two or more rational functions?

• They must have the same coefficient.

• They must have the same variable.

• They must have the same numerator.

• They must have the same denominator.

In the example given, what is the result of adding the numerators 5 and 7?

• 10

• 11

• 12

• 13

What is the final simplified form of the expression 6x/12x?

• 1/2

• 1/3

• 1/5

• 1/4

What happens to the terms -3 and +3 in the second example?

• They remain unchanged.

• They add up to 6.

• They multiply to -9.

• They cancel each other out.

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