Question

Evaluate -(7^-3)(7^5)
A: 49,
B: -49,
C: -1/49,
D: 1/49.

Answer 1

B

Explanation:

-(7^-3) = -1/343

(7^5) = 16807

16807*-1/343 = -49

Answer 2

Option B -49

Explanation:

-(7^-3)(7^5)

-1/7^3×7^5

-7^2

-49

So option B is correct