Question 1131744


 {{{x^3- 9x^2 + 23x - 15 = 0}}}

 {{{x^3-x^2- 8x^2 + 8x+15x - 15 = 0}}}

 {{{(x^3-x^2)- (8x^2 - 8x)+(15x - 15) = 0}}}

 {{{x^2(x-1)- 8x(x - 1)+15(x - 15) = 0}}}

{{{(x^2 - 8 x + 15)(x - 1)=0}}}

{{{(x^2 - 3x-5x + 15)(x - 1)=0}}}

{{{((x^2 - 3x)-(5x - 15))(x - 1)=0}}}

{{{(x(x - 3)-5(x - 3))(x - 1)=0}}}

{{{(x - 5) (x - 3) (x - 1) = 0}}}


solutions:

{{{x=5}}}

{{{x=3}}}

{{{x=1}}}



{{{ graph(600, 600, -10, 10, -10, 10,(x - 5) (x - 3) (x - 1) ) }}}