展开 f(x)(0,-2)

解答

展开

f (x) (0, - 2)

0 \cdot f (x), - 2 f (x)

求解步骤

f (x) (0, - 2)

= (0, - 2) f (x)

使用分配律:

a (b - c) = ab - a c

a = f (x), b = 0,, c = 2

= f (x) \cdot 0, - f (x) \cdot 2

= 0 \cdot f (x), - 2 f (x)

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