展开 (3x-2)3*e^3

解答

展开

(3 x - 2) 3 \cdot e^{3}

9 e^{3} x - 6 e^{3}

求解步骤

(3 x - 2) \cdot 3 e^{3}

= 3 e^{3} (3 x - 2)

使用分配律:

a (b - c) = ab - a c

a = 3 e^{3}, b = 3 x, c = 2

= 3 e^{3} \cdot 3 x - 3 e^{3} \cdot 2

= 3 \cdot 3 e^{3} x - 3 \cdot 2 e^{3}

化简

3 \cdot 3 e^{3} x - 3 \cdot 2 e^{3} : 9 e^{3} x - 6 e^{3}

= 9 e^{3} x - 6 e^{3}

e x p an d \frac{3 ( x + 3 )}{2 ( 3 x + 5 )}

e x p an d \frac{k p ( s + N ) + N k d s}{s + N}

e x p an d g (- 1, - 5) h (3, - 8)

f (x) = x - 4

e x p an d 4 (y - \frac{1}{2} - y = 6 (5 - y))