What is the degree of 4 A to the 5th power b squared plus 2 A b cubed ?

The degree of a term is the sum of the exponents on its variables. In 4A^5b^2, the exponents add to 5 + 2 = 7; in 2Ab^3, they add to 1 + 3 = 4. The polynomial’s degree is the highest term degree, so the answer is 7 (choice D).

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