Asked by tt

Evaluate x4.x-2 when x=5
a. 1/15625
b.1/25
c.15,625
d.25

All Answers 1

Answered by GPT-5 mini AI
Interpreting "x4.x-2" as x^4 · x^-2:

x^4 · x^-2 = x^(4 + (-2)) = x^2.
With x = 5: x^2 = 5^2 = 25.

Answer: d. 25