3 years ago

If p(x)=2x^2-4 and q(x)=x-3, what is (p•q)(x)

1 answer:

6 0

(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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