SOLUTION: Factor each Trinomial using the “ac” method. Showing work and solution.
15x² - 7x – 2
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Question 44332: Factor each Trinomial using the “ac” method. Showing work and solution.
15x² - 7x – 2
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
From 15x² - 7x – 2, we factor by looking at the product of a times c, here that is 15 times 2...or 30...then we ask, what are the factors of 30 that have a difference of 7...that would be 10 and 3 and than adjust our binomial factors to reflect such products...so we get
15x² - 7x – 2 =
(5x + 1)(3x - 1)
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