09-10-2017
Mathematics

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Find f(x) · g(x) = (fg)(x). Simplify. f(x) = x2 + 4 g(x) = x2 − x + 5

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choixongdong choixongdong

09-10-2017

f(x) = x2 + 4 g(x) = x2 − x + 5

f(x) · g(x) = (fg)(x) = (x^2 + 4)( x^2 − x + 5)
f(x) · g(x) = (fg)(x) = x^4 - x^3 + 5x^2 + 4x^2 - 4x + 20
f(x) · g(x) = (fg)(x) = x^4 - x^3 + 9x^2 - 4x + 20

answer
f(x) · g(x) = (fg)(x) =
x^4 - x^3 + 9x^2 - 4x + 20

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