Question

Factorise : x² + 12x + 27 .​

Answer 1

`\bf(x + 3)(x + 9)`

Explanation:

`x(x + 9) + 3(x + 9)`

`(x + 3)(x + 9)`

Answer 2

(x + 12)(x + 3)

Explanation:

Hi! Our task is to factorize the following expression:

`\sf{x^2+12x+27}`

Once again, we will think of two numbers that:

• multiply to 27 (they could be 3 and 9)
• add to 12 (3 and 9, again!!)

Therefore, the expression can be factored as:

• 
  `\sf{(x+12)(x+3)}`