Question

factorise the following by regrouping ​

Answer 1

Answer:

Answer:(y+1)(y+9)

Step-by-step explanation:

y^2+9+9y+y

(y^2+y)(9y+9)

y(y+1)+9(y+1)

(y+1)(y+9)

Answer 2

Answer:

y²+9+9y+y

= y²+9y+y+9

= y(y+9)+1(y+9)

= (y+9)(y+1)