# Math Help - Finding the missing factor....(help pls)

1. ## Finding the missing factor....(help pls)

1. (a2) ( ? ) = a8

2. (x4) ( ? ) = x7

3. ( ? ) (5m2) = 20m5

4. ( ? ) ( – 6a2) = 18a3

5. ( – 3a2b3) ( ? ) = – 27a6b7

Thanks!

2. Originally Posted by slykksta
1. (a2) ( ? ) = a8

2. (x4) ( ? ) = x7

3. ( ? ) (5m2) = 20m5

4. ( ? ) ( – 6a2) = 18a3

5. ( – 3a2b3) ( ? ) = – 27a6b7

Thanks!
I presume that most of these integers are exponents? Try writing them this way:
a^2 ( ? ) = a^8

That would be much clearer.

Solve these problems by division. For example:
$a^2 x = a^8 \implies x = \frac{a^8}{a^2} = a^{8 - 2} = a^6$

etc.

-Dan