Question

Factorise r2+12r+27 ​

Answer 1

Answer:

r^+12r+27

=r^+9r+3r+27

=r(r+9)+3(r+9)

=(r+3)(r+9)

Hope it helps you

Answer 2

Answer:

r²+12r+27

r²+9r+3r+27

r(r+9)+3(r+9)

(r+9)(r+3)