展开 (2x-1)ln(3)

解答

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(2 x - 1) ln (3)

2 ln (3) x - ln (3)

求解步骤

(2 x - 1) ln (3)

= ln (3) (2 x - 1)

使用分配律:

a (b - c) = ab - a c

a = ln (3), b = 2 x, c = 1

= ln (3) \cdot 2 x - ln (3) \cdot 1

= 2 ln (3) x - 1 \cdot ln (3)

乘以:

1 \cdot ln (3) = ln (3)

= 2 ln (3) x - ln (3)

e x p an d π^{2} (12 - 3 r)

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s im pl i f y (3 x^{2} - \frac{5}{3 x ^{3}}) (3 x^{2} + \frac{5}{3 x ^{3}})

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