Question

sum of the zeroes of the polynomial p(x)=x -Kx +9 is7.find the value of K

Answer 1

Step-by-step explanation:

Given Question:-

sum of the zeroes of the polynomial p(x)=x -Kx +9 is7.find the value of K

Correct Question:-

Sum of the zeroes of the polynomial p(x)=x^2 -Kx +9 is7.find the value of K?

Solution:-

Given quadratic Polynomial p(x)=x^2-Kx+9

On Comparing this with the standard quadratic Polynomial ax^2+bx+c

a = 1

b= -K

c= 9

Sum of the zeroes = -b/a

Sum of the zeroes = -(-K)/1

Sum of the zeroes = K

It is given that

Sum of the zeroes = 7

K = 7

Answer:-

The value of K for the given problem is 7

Used formulae:-

• the standard quadratic Polynomial ax^2+bx+c
• Sum of the zeroes = -b/a