展开 20(31)

解答

展开

20 (31)

620

求解步骤

20 (31)

去除括号:

(a) = a

= 20 \cdot 31

数字相乘:

20 \cdot 31 = 620

= 620

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

e x p an d (x^{2} + 1) \circ (x + 1) (x)

e x p an d - (9 x^{3} + 9 x^{2} + 6 x + 2) e - 3 x^{27}

e x p an d \frac{5 x ^{2}}{( x - 4 ) ( x ^{2} - 9 )}

e x p an d 8 (e^{x} + 2)^{2}