Select all that are like terms to 5a5b4.

Like terms have the same variables raised to the same exponents; their coefficients may differ. The term 5a⁵b⁴ has a⁵ and b⁴, so a⁵b⁴, −a⁵b⁴, and 9a⁵b⁴ are like terms. The other choices have different exponents or are missing a variable.

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