14dayana
14dayana
12-06-2017
Mathematics
contestada
If p(x)=2x^2-4 and q(x)=x-3, what is (p•q)(x)
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egoodrich1337
egoodrich1337
12-06-2017
(p of q)(x) means that q(x) is inserted into p(x).
p(q(x)) = 2(x - 3)^2 - 4
Expand (x - 3)^2.
p(q(x)) = 2(x^2 - 6x + 9) - 4
p(q(x)) = 2x^2 - 12x + 14
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