Find a polynomial P(x)=0 in standard form with integer coefficients whose roots are 2/3, -4, 3+i sq root 5.
Can someone teach me how to start it? thank you!
Think about it this way. If you have a polynomial you can factor it to . Is it clear that the roots are and ?
(a root is where a function crosses the x-axis, or equivalently when P(x)=0)
If this makes sense to you, then the question that you have to answer is simply doing this procedure backwards.
In other words,