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Algebra 9 Online
OpenStudy (anonymous):

The product of a + 3 and –2a2 + 15a + 6 is –2a3 + xa2 + 51a + 18. What is the value of x? a. 3 b. 9 c. 12 d. 15

OpenStudy (retireed):

x is is the coefficient of the a squared term (a^2) so what is (a * 15a) + [3 * (-2a^2)] ?

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