展开 3/4 (16x-12)

解答

展开

\frac{3}{4} (16 x - 12)

12 x - 9

求解步骤

\frac{3}{4} (16 x - 12)

使用分配律:

a (b - c) = ab - a c

\frac{3}{4} (16 x - 12) = \frac{3}{4} \cdot 16 x - \frac{3}{4} \cdot 12

= \frac{3}{4} \cdot 16 x - \frac{3}{4} \cdot 12

化简

\frac{3}{4} \cdot 16 x - \frac{3}{4} \cdot 12 : 12 x - 9

= 12 x - 9

s im pl i f y (- 1 - \frac{1}{jk r}) (- 1 + \frac{1}{jk r})

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

s im pl i f y (x + i \cdot y)^{3}

e x p an d (3, 1, 2) (2, 3, 7) y (1, - 3, 8)

e x p an d (2 u, 2 v, 1) (9 - u^{2} - v^{2}, 9 - u^{2} - v^{2}, u)