Question

if sum of the zeros of a quadratic polynomial 5 x^2 - (3 k + 2)x + 1 is 4 find k​

Answer 1

Answer:

6

Step-by-step explanation:

The given polynomial is 5x²-(3k+2)x+1

sum of the zeroes=-b/a=(3k+2)/5

But it is given that sum of the zeroes is 4.

So (3k+2)/5=4

=> 3k+2=4×5=20

=> 3k=20-2

=> 3k=18

=> k=18/3

=> k=6.

Thus the value of k is 18.(answer)

Hope you got it.