Question

4.
U allu write it in the set builder form.
Sum of the zeroes of the polynomial p(x) = x2 - kx + 9 is 7. Find the
value of K.
5​

Answer 1

Answer:

k = 7

Step-by-step explanation:

Let us say that the zeroes are a and b.

We will use the relations between coefficients and zeroes of a quadratic equation.

a + b = -(-k)/1 = k

But it is given that the sum of zeroes is 7.

Hence, k = 7