Question

If Alfa , beta are the zeroes of the polynomial bx^2-cx+a then Alfa + beta​

Answer 1

Answer:

Step-by-step explanation:

Given polynomial bx² - cx + a

This is a quadratic polynomial and sum of zeroes in quadratic polynomial is -(coefficient of x)/(constant)

Therefore,

alpha + beta = -(-c)/a = c/a  

Answer 2

Answer:

If α and β are the zeroes of the quadratic polynomial, then

aα²+bα +c=0 and

aβ 2 +bβ +c=0

or, aα 2 +bα − aβ 2 −bβ=0

Then, α+β= -b/a

and αβ = c/ab