Question

simplify and express each as a rational number. (-7/8)^-3 x (-7/8)^2​

Answer 1

Step-by-step explanation:

(-7/8)-3× (-7/8)2 We have, = (-7/8) (-3+ 2) … [{(a/b) m × (a/b) n} = (a/b) m-n = (-7/8) (-1) = (-8/7)Read more on Sarthaks.com - https://www.sarthaks.com/747661/simplify-7-8-3-7-8-2-and-express-a-rational-number

Answer 2

Answer:(−8/7)

Step-by-step explanation:

We have,

=(−7/8) ^ (−3+2)  ...[{(a/b)  ^m ×(a/b) ^ n  }=(a/b) ^m−n

 

=(−7/8)^  (−1)

 

=(−8/7)^  1

 

=(−8/7)