Question

If {(−2/7)2}n X (−7/2)−1 = ( −8/343) find n​

Answer 1

Answer:

(-2/7*2)n *(-7/2*-1) = (-8/343)

(-4n/7)*(7/2) = (-2/7)³

-2n=(-2/7)³

n =(-2/7)³*-1/2

n = 4/343