matthewsalliah matthewsalliah

28-03-2018
Mathematics

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

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sqdancefan sqdancefan

30-03-2018

p(x) can be simlified as p(x) = 2x(x -2)

(p∘q)(x) = p(q(x)) = p(x -3) = 2(x -3)(x -3 -2)
(p∘q)(x) = 2(x -3)(x -5)

(p∘q)(x) = 2x^2 -16x +30

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