#### notes

`ax^2 + bx + c = 0` with real coefficients a, b, c and a ≠ 0. Also, let us assume that the

`b^2 – 4ac < 0.`

`x= [-b ± sqrt (b^2- 4ac)]/(2a)= [-b ± sqrt (4ac- b^2 i)]/(2a)`

“A polynomial equation has at least one root.”

“A polynomial equation of degree n has n roots.”