Question

write the relation between zeros and cofficents of cubic polynomial

Answer 1

Let
$a {x}^{3} + b{x}^{2} + cx + d$
Be a cubic polynomial

Let P, Q, and R be the zeroes

Relationship

P + Q + R = $\frac {-b} {a}$

PQ + QR + PR = $\frac{c} {a}$

PQR = ${-d} {a}$