Question

By actual division, find if
(i) x - 4 is a factor of x2 - 5x - 15​

Answer 1

Answer:

No, (x-4) is not a factor of (x^2 - 5x -15).

Step-by-step Explanation:

please find the attached solution.

For (x-4) to be a factor of (x^2 - 5x -15), remainder should be zero.

after actual division, we get a remainder of -19.

Hence, it is not a factor.

Answer 2

Answer:

x-4)x^2-5x-15(x-1

x^2-4x

________

-x-15

-x+4

________

-19