(x-4)
x2 + 13x + 36 = (x + 9)(x + 4)
(x + 4)(x + 9)
(x + 9)(x + 4)
x^2 - 13x + 36 = 0 Factor: (X-9)(X-4) = 0 X = 9 X = 4
x2 + 13x + 36 = 0 so (x+4)(x+9) = 0 so that x = -4 or x = -9
(x + 12)(x - 3)
(x - 9)(x - 4)
x2-13x+36=(x-9)(x-4)=0 x=9 or x=4
x sq equalls 36 and x equalls plus or minus 6
(x -3)(2x2 + 3x - 4)
(6x - 1)(6x - 1)
(x+9)(x+4)