展开 sqrt(343)*sqrt(63)

解答

展开

343 \cdot 63

147

求解步骤

34363

343 = 77

= 7763

63 = 37

= 7 \cdot 377

数字相乘:

7 \cdot 3 = 21

= 2177

使用根式运算法则:

a a = a

77 = 7

= 21 \cdot 7

数字相乘:

21 \cdot 7 = 147

= 147

s im pl i f y (\frac{2 m}{3} + 7 b) (\frac{2 m}{3} - 7 b)

s im pl i f y (x + \frac{1}{2}) (x + \frac{11}{2})

e x p an d \frac{90 ( s + 0.3 )}{( s + 3.8 ) ( s - 2.9 ) ( s + 10 )}

e x p an d \frac{1}{s ( s ^{2} + 2 s + 10 )}

e x p an d - \frac{4 ( 72 - 5 P ^{2} )}{3}