Which expression is equivalent

a^9*b^6

Step-by-step explanation:

a^(-8)                              b              1                                         1

= a^(-3), and   =  Their product is

a^(-5)                            b^(3)        b^2                                a ^3*b^2

This is the algebraic expression inside the parentheses.  We must now take

the negative 3rd power of this result.

  (a^3*b^2)^3 = a^9*b^6

1

step-by-step explanation:

it's the only multiple of both and the least