Question

In this expression, Marianne claims that 2x and –x are not like terms because –x does not have a coefficient. Is she correct? Explain your reasoning.

m squared + 2 x minus x + 3 m squared + 2

Answer 1

Marianne is incorrect. 2x has the coefficient 2, but -x is the same as -1x. That means the coefficient is -1.

Answer 2

Answer:G

Explination:

Marianne is incorrect because like terms are terms that have the same variables, raised to the same powers. The terms –x and 2x fit the definition for like terms. The term –x has a coefficient of –1. Marianne is not correct