展开 6((5m)/6-5=5(6-5m))

解答

展开

6 (\frac{5 m}{6} - 5 = 5 (6 - 5 m))

5 m - 30 = 30 - 25 m

求解步骤

6 (\frac{5 m}{6} - 5 = 5 (6 - 5 m))

= 6 (\frac{5 m}{6} - 5 \cdot 5 = (6 - 5 m))

使用分配律:

a (b - c) = ab - a c

a = 6, b = \frac{5 m}{6}, c = 5 = 5 (6 - 5 m)

6 \cdot \frac{5 m}{6} - 6 \cdot 5 = 5 (6 - 5 m)

化简

6 \cdot \frac{5 m}{6} - 6 \cdot 5 = 5 (6 - 5 m) : 5 m - 30 = 30 - 25 m

5 m - 30 = 30 - 25 m

e x p an d (1 + x^{2}) d y - (x y) d x

\frac{d}{d x} ((z) (sin (x y z) - x - 2 y - 3 z))

e x p an d (t^{2} - x^{2}) d x - (t x) d t

e x p an d \frac{- c ( n - 2 )}{n + 1}

e x p an d \frac{e ^{x}}{4 ( 1 - e ^{2 x} )}