If f(x) and g(x) are as defined in Example 2.7, derive expressions for the functions formed by

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If f(x) and g(x) are as defined in Example 2.7, derive expressions for the functions formed bya. f(x) = g(x) b. (f(x)) x (g(x)) = (x)


Example 2.7

If f (x) = x2 +2 and g(x) = x3 − 2x2 − 3, derive expressions for the functions formed by

f(x) + g(x)

−2f (x) + 4g(x)

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