Question

simplify 4-³x a-5 x b-⁴ / 4-5 x a-8 x b³​

Answer 1

Answer:

Step-by-step explanation:

The given expression:

4^(-3)*a^(-5)*b^(-4) / 4^(-5)*a^(-8)*b^(3)

Subtract the powers for the equal bases in the above fraction

4^(-3 - (-5)) * a^(-5-(-8)) * b(-4-3)

=4^(-3+5) * a^(-5+8) *b^(-7)

=4^2 * a^3 * b^(-7)

=16 * a^3 * b^(-7)