展开 lm(wx)+(3x+1)ln(x)

解答

展开

l m (w x) + (3 x + 1) ln (x)

l m w x + 3 x ln (x) + ln (x)

求解步骤

l m (w x) + (3 x + 1) ln (x)

= l m (w x) + ln (x) (3 x + 1)

乘开

ln (x) (3 x + 1) : 3 x ln (x) + ln (x)

= l m (w x) + 3 x ln (x) + ln (x)

去除括号:

(a) = a

= l m w x + 3 x ln (x) + ln (x)

e x p an d \frac{x ( x - 9 )}{x - 81}

e x p an d f^{'} (x) (2 x - 3)

e x p an d (64)^{\frac{2}{3}}

e x p an d \frac{( e ^{- 4 t} )}{( s + 2 ) ^{3}}

e x p an d \frac{( m ^{2} - mn )}{7 ( m + 4 n )}