Practice problem
What quadratic polynomial has the root 2+i2+i2+i?
x2+4x+5x^2+4x+5x2+4x+5
x2+4x−5x^2+4x-5x2+4x−5
x2−4x+5x^2-4x+5x2−4x+5
x2−4x−5x^2-4x-5x2−4x−5
Type a concept, like “slope” or “photosynthesis”.
