Question

If 5 is a zero of the quadratic polynomial, x2 – kx -15 then the value of k is ______.

Answer 1

p(x)=x²-kx-15

p(5)=(5)²-k(5)-15

p(5)=25-5k-15

5k=10

k=2

Value of k =2

Answer 2

Answer:

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