Question 1023529

given zeros: {{{x[1]=-2}}}, {{{x[2]=i}}}, {{{x[3]=-i}}}

{{{f(x)=(x-x[1])(x-x[2])(x-x[3])}}}

{{{f(x)=(x-(-2))(x-i)(x-(-i))}}}

{{{f(x)=(x+2)(x-i)(x+i)}}}

{{{f(x)=(x+2)(x^2-(i)^2)}}}

{{{f(x)=(x+2)(x^2-(-1))}}}

{{{f(x)=(x+2)(x^2+1)}}}

{{{f(x)=x^2*x+1*x+x^2*2+1*2}}}

{{{f(x)=x^3+2x^2+x+2}}}


{{{ graph( 600, 600, -10, 10, -10, 10, x^3+2x^2+x+2) }}}