Question

(ii) (x + 3y)(3x - y)​

Answer 1

Answer:

.(x+3y)(3x-y)

3x2+9xy-xy-3y2

8xy+3x2-3y2

Answer 2

Answer:

$3x^{2}  + 8xy - 3y^{2}$

Step-by-step explanation:

( x + 3y ) ( 3x - y )

= $3x^{2}  - xy + 9xy - 3y^{2}$

= $3x^{2}  + 8xy - 3y^{2}$