If alpha and beta are the zeros of the quadratic polynomial x square - 5x + k such that alpha minus beta is equal to 1. Find the value of k
Answers
Answered by
4
alpha+beta=5
alpha-beta= -1
2alpha = 4
alpha = 2
beta = 3
alpha.beta = k
Hence,
k= 6
vanshikasunhare:
thnk u so much.. dear.. But I'm unable toh understand it..sorry
From equation, you can take out the sum and product of zeroes, which are alpha + beta and alpha*beta. From the equation these values are given to you. Sum of zeroes is (-b/a) and product is c/a where a,b,c are coefficients of the equation. You have given one more equation which is alpha - beta = -1. Now you can take out the values of alpha and beta
Similar questions