Question

Зу (у + 3) + бу (3y+9)​

Answer 1

Answer:

21y²+63y

Step-by-step explanation:

Зу (у + 3) + бу (3y+9)

3y²+9y+18y²+54y=

21y²+63y

Answer 2

Answer:

 $21y^2 + 60y$

Step-by-step explanation:

3y (y + 3) = 3y x y = $3y^{2}$ and 3y x 3 = 6y =

6y (3y + 9) = 6y x 3y = $18y^2$ and 6y x 9 = 54y =

$3y^{2}$ + 6y + $18y^2$ + 54y

= 3y^2 + 18y^2 = 21y^2

and 6y + 54y = 60y

$21y^2 + 60y$

Mark Brainliest if helped!

Tq dear frnd!! :)