Question

Simplify : 49 x a^-3
--------------------------
7^-3 x 10 x a^-8

Answer 1

49 × 1/a³

____________

1/7³ × 10 × 1/a⁸

49/a³

=___________

1/343 × 10/a⁸

49/a³

=___________

10/343a⁸

= (49/a³ ) × ( 343a⁸/10)

= 1680.7 a⁵ Answer.