Question

au If Sum of the squares of zeroes of the quachatis Polynomial f (x) = ×2-8×+k is 40 then the value of k3
(a) 10
(b) 12
(c) 14
(d) 16​

Answer 1

Answer:

k= 12

Step-by-step explanation:

Given:-

Sum of the squares of zeroes of the quadratic Polynomial f (x) = ×2-8×+k is 40.

To find:-

The value of k

Solution:-

Let 'a' and 'b' be zeroes of the Polynomial

Therefore, a+b= 8, ab= k

a²+b²= 40

a²-2ab+b²= 40

64-2k= 40

2k= 64-40

2k= 24

k= 24/2

k= 12

Therefore, The value of k is 12.

Answer 2

Answer:

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