If (x2+ kx – 3) = (x – 3 ) (x + 1) then k =?
We have, (x2 + kx – 3) = (x – 3) (x + 1)
So, the value of k can be calculated as follows:
(x2 + kx – 3) = x2 – 3x + x – 3
x2 + kx – 3 = x2 – 2x – 3
On comparing the coefficients, we get,
kx = - 2x
k = - 2
Thus, the value of k = - 2
Hence, option B is correct