Question

if alpha and beta are the zeros of the quadratic polynomial ax2+bx+c then evaluate
1/alpha^3+1/beta^3 ​

Answer 1

Answer:

alpha + beta = -b/a and alpha beta = c/ a

Step-by-step explanation:

Answer 2

Step-by-step explanation:

Let s= Alpha, t= Beta

To find 1/s - 1/t = (t-s)/st

a x^2+ b x +c = (x-s) ( x- t)

So s+t = -b/a and st =c/a

Use (t-s)^2= (t+s)^2–4ts to determine (t-s)