Question

36a square+36a+9
factorise this

Answer 1

Given 36a^2 + 36a + 9

          9(4a^2 + 4a + 1)

          9(2a + 1)(2a + 1)

          9(2a + 1)^2

Answer 2

Answer:

Step-by-step explanation:

36a^2 + 36a + 9

= 9(4a^2+4a+1)

= 9{(2a)^2+2^2a+1]

by using the formulae = (a+b)^2

= 9{(2a)^2+1+2x2xa]

= 9(2a+1)^2