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Which of the following cannot be combined into a single term?

Class 7Like and Unlike TermsAlgebra

A $3 a + 9 a$
B $7 x y + 2 x y$
C $4 m^{2} + m^{2}$
D $5 x + 5 y$

Step-by-Step Solution

5 x

and

5 y

are unlike terms (different variables), so they cannot be combined into one term. The others are all like terms.

Answer: D)

5 x + 5 y

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