Question

express each of the following rational number in power nation -216/343
do it second method​

Answer 1

Step-by-step explanation:

take out the factors first

216 = 2×2×2×3×3×3

343 = 7×7×7

now , 216 can be written as 2^3 × 3^3

and 343 as 7^3

so ans is -(2^3 × 3^3) ÷ (7^3) = - (6^3) / (7^3)