Find the product.(a2)(2a3)(a2 – 8a + 9)

First multiply the two monomials: (a²)(2a³) = 2a⁵. Then distribute 2a⁵ across the trinomial: 2a⁵(a² − 8a + 9) = 2a⁷ − 16a⁶ + 18a⁵. This matches choice A, 2a⁷ − 16a⁶ + 18a⁵.

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