Question

. If sum of the zeroes of the polynomial 2x² - kx + 3 is 2 , then find k .​

Answer 1

p(x) = 2x² - kx + 3

Given, sum of zeroes = 2

But, we know

==> sum of zeroes = ( coefficient of x ) / ( coefficient of x² )

==> -(-k)/2 = 2

==> k / 2 = 2

==> k = 4

Hence, the value of k is 4