展开 (2x-1)-(6x)

解答

展开

(2 x - 1) - (6 x)

- 4 x - 1

求解步骤

(2 x - 1) - (6 x)

去除括号:

(a) = a

= 2 x - 1 - 6 x

对同类项分组

= 2 x - 6 x - 1

e x p an d \frac{5 s + 1}{( s - 1 ) ( s + 2 )}

e x p an d 2 aaabbbb \cdot (a) b

e x p an d - 7 (6 - 2 (3 - 5 x) = 10 x)

e x p an d (3 x + 1) \circ \cdot 3^{x + 1}

e x p an d 3 a - 2 b + c - 9 d + 2 a + 6 b - 3 d + 4 a