Question

13. 3y(x + 3y) + 3(x+3y) (x+3y)

factorise it ​

Answer 1

Answer:

i  think (x+3y)+3

Step-by-step explanation:

Answer 2

Answer:

3 (x^2 + 7xy + 12y^2)

Step-by-step explanation:

(3xy + 9y^2) + (3x + 9y) (x + 3y)

°Use distributive property on the 2nd and 3rd equation

(3xy + 9y^2) + (3x^2 + 18xy + 27y^2)

°Add similar terms

3x^2 + 21xy + 36y^2

°Factorize

3(x^2 + 7xy + 12y^2)