Question

WILL GIVE MEDAL!!!!Expand (a – 1)(a – 2) by using the FOIL method.

Answer 1

(a - 1)(a - 2)
F - multiply first terms in each set ....a * a = a^2
O - multiply outside terms ....a * 2 = 2a
I - multiply inside terms .....-1 * a = -1a
L - multiply last terms .....-1 * -2 = 2

Now put it all together
a^2 + 2a - 1a + 2
now combine like terms
a^2 + a + 2

Answer 2

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