Question

(x+9)² factorise it​

Answer 1

It is already factorised form.

${(x + 9)}^{2} \\ =(x + 9)(x + 9) \\ = {x}^{2} + 18x + 81$

Answer 2

Answer:

=x²+18x+81

= x² +9x+9x+81

= x(x+9) +9(x+9)

= (x+9) (x+9)