Question

if zero of a quadratic polynomial p(x)=3x2+2(k-1)x-5 are equal in magnitude but opposite in sign find the value of k​

Answer 1

Answer:

3x^2 +(2k+1)x−5=0

Sum of the roots = Product of the roots

i.e., a+β=aβ

or − 2k+1/3= −5/3or 2k+1=5 or k=2