化简 (A/6+4Z)(A-5Z)

解答

化简

(\frac{A}{6} + 4 Z) (A - 5 Z)

\frac{( 24 Z + A ) ( A - 5 Z )}{6}

求解步骤

(\frac{A}{6} + 4 Z) (A - 5 Z)

合并

\frac{A}{6} + 4 Z : \frac{24 Z + A}{6}

= \frac{24 Z + A}{6} (A - 5 Z)

使用分式法则:

a \cdot \frac{b}{c} = \frac{a \cdot b}{c}

= \frac{( 24 Z + A ) ( A - 5 Z )}{6}

s im pl i f y (- x^{2} + 8 \circ 4 x + 8) (- 4)

e x p an d z (- x_{1} + x_{2} - 4)^{2}

s im pl i f y s (s + 1) (\frac{s}{2} + 1)

e x p an d (- 15 w - 20) +!! (3 - 4 w)

e x p an d (sec (x) - 1) (1 + cos (x)) cos (x)