# Math Help - Roots and Degrees

1. ## Roots and Degrees

determine an equation of degree 3 with roots x=3 +- i and x=-4
Is this equation unique?

thanks for help!i have no idea oh how to formulate an equation with those roots

2. Originally Posted by monkius
determine an equation of degree 3 with roots x=3 +- i and x=-4
Is this equation unique?

thanks for help!
a cubic equation with roots $r_1,~r_2,~r_3$ can be written as $a(x - r_1)(x - r_2)(x - r_3)$

this is not unique. because you can have different values for $a$