Multiply: `3,15 x\ a n d-23 x^2y` (ii) ` x , x^2y z\ a n d-3/7x y z^2`

Explanation

(i)Multiply: `3,15 x\ a n d-23 x^2y`
`=(3times15times(-23))times(xtimesx^2y)`
`=-1035x^3y`

(ii)Multiply: `x, x^2y z` and `-3/7x y z^2`
`=-3/7times(xtimesx^2yztimesxyz^2)`
`=-3/7x^4y^2z^3`