Question

18u^4w^6y^7+12u^9w^8

Answer 1

`6u^4w^6(3y^7+2u^5w^2)`

Explanation:

`18u^4w^6y^7+12u^9w^8`

we can only take common factor

18 and 12 have 6 as a common factor

in variables we have

`u^4w^6y^7` and
`u^9w^8` so we see clearly that it is
`u^4w^6`

so we have

`6u^4w^6(3y^7+2u^5w^2)`

as far as you can go