Question

consider the expression
, x^2+kx-28 which of the following ways should we split the term kx, so that x+4 is one of the factors of the above expression​

Answer 1

Answer:

x=-4.

put value of x

(-4)square+k(-4)-28=0

16-4k=28

-4k=12

k=12/4

k=-3 . Hope this helps .