Question

Factorise x2 (squared) - 6x - 27

What’s the answer?

Answer 1

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let's factorise :

• 
  `{x}^(2) - 6x - 27`

• 
  `x {}^(2) - 9x + 3x - 27`

• 
  `x(x - 9) + 3(x - 9)`

• 
  `(x - 9)(x + 3)`

Done !