化简 b^8(2b)^3

解答

化简

b^{8} (2 b)^{3}

8 b^{11}

求解步骤

b^{8} (2 b)^{3}

化简

(2 b)^{3} : 8 b^{3}

= b^{8} \cdot 8 b^{3}

使用指数法则:

a^{b} \cdot a^{c} = a^{b + c}

b^{8} b^{3} = b^{8 + 3}

= b^{8 + 3} \cdot 8

数字相加:

8 + 3 = 11

= b^{11} \cdot 8

= 8 b^{11}

\frac{2 x + 5}{10} = \frac{42}{20}

3 x + 4 = 6 x + 19

5 x - 6 = 18 + 2 x

s im pl i f y 171 x^{9} y^{19}

0.2 (625) = \frac{t ^{2}}{20}