Which of the following are like terms?

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Multiple Choice

Which of the following are like terms?

Explanation:
Like terms are terms that have the same variable raised to the same power; their coefficients can be different and they can be combined when adding or subtracting. The pair 4c and -2c fits this idea because both terms contain the same variable c to the first power. The other options mix different powers or different variables: 7c^2 vs c have different exponents; 2cd vs 5d involve different variables (one has both c and d, the other only d); and 6a vs 3b use different variables altogether. So the like-term pair is 4c and -2c.

Like terms are terms that have the same variable raised to the same power; their coefficients can be different and they can be combined when adding or subtracting. The pair 4c and -2c fits this idea because both terms contain the same variable c to the first power. The other options mix different powers or different variables: 7c^2 vs c have different exponents; 2cd vs 5d involve different variables (one has both c and d, the other only d); and 6a vs 3b use different variables altogether. So the like-term pair is 4c and -2c.

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