Question

. If the sum of the zeroes of the polynomial
f(x) = 2x2 - 3kx + 4 is 6, then find the value of k.
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Answer 1

Answer:

if 6 is the sum of the zeroes of the polynomial

then -b/a =6 so by comparing with the value of b and a of the given polynomial

3k/2=6

3k=6×2

k=12/3

k= 4

(you can check the answer by finding the zeroes and their relation with coefficient)