Question

If x+1 is a factor of the polynomial 2x square + kx, then the value of k is ??

Answer 1

p(x) = 2x² + kx

Factor of p(x) = x + 1

So,

One of the two Zeroes of p(x) = -1

p(-1) = 0

==> 2(-1)² + k(-1) = 0

==> 2 - k = 0

==> -k = -2

==> k = 2

∴ Value of k = 2

Answer 2

Answer:

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