Which expression is equivalent to 7a^2b + 10a^2b^2 + 14a^2b^3?

A) ab (7a^2 + 10ab + 14b^2)

B) a^2b (7 + 10b + 14b^2)

C) 7a^2 (b + 3b^2 + 7b^3)

D) 7a^2b^3 (b^2 + 3b + 7)

Demarco wrote two correct variable expressions to represent the phrase "the product of a number and 7." Which of these variable expressions could Demarco have written? Choose exactly two answers that are correct. Question 1 options: a. n x 7 b. 7n c.

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