Answer
12$a^{2}$ -a -1
Work Step by Step
( 4a + 1 )(3a - 1 ) FOIL method
(4a)(3a) + (4a)(-1)+(1)(3a) +(1)(-1)
12$a^{2}$ -4a + 3a -1
12$a^{2}$ -a -1
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