Let f(x) = -5 - 3x2 and g(x) = -3 - 5x2 - x3. Then f(x) - g(x) equals _____.

asked Dec 19, 2018 197k views

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f(x) - g(x) = -5 - 3x^2 - (-3 - 5x^2 - x^3)
f(x) - g(x) = -5 - 3x^2 + 3 + 5x^2 + x^3
f(x) - g(x) = x^3 + 2x^2 - 2

Frank Wilson answered Dec 25, 2018

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