Factor the expression X^2-15x+54?

Question

The 2 next to x is a square

Answer 1

 The expression is X² - 15X + 54

  x² -15x +54

  x² - 6x - 9x + 54

x is a common factor and - 9 is a common factor

  x ( x - 6) - 9 (x - 6)

(  x - 6 ) is a common factor

  ( x - 6) ( x - 9 )