Question

x^2 – 16x + 15 = 0

Answer 1

x^2-15x-1x+15
x(x-15)-1(x-15)
(x-1)(x-15)

Answer 2

(x-15)(x-1)=0 --> (x-15) =0 or (x-1) =0 -->x=15 or x=1

Answer 3

since (x-1)(x-15) = 0
x=1 or x=15

Answer 4

so are they positive or negative

Answer 5

positive

Answer 6

Factor: (x-15)(x-1)=0
Set both 'factored parts' equal to 0; x=15 and x=1