How do you multiply $(3xy - 1) (4xy + 2)$ ?

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Answer 1 · 2015-04-06T22:13:17

Using the distributive property with FOIL:
$(3xy−1)(4xy+2)$
$12x^2y^2-4xy+6xy-2$
$12x^2y^2+2xy-2$

How do you multiply (3xy - 1) (4xy + 2)(3xy - 1) (4xy + 2)?