Question

If x2 +
+ kx – 15 = (x - 3)(x + 5) for all x, then the value of k is​

Answer 1

Step-by-step explanation:

First solve the brackets then equate both sides

Answer 2

Answer:

Pls Refer to this Picture

1-First open Brackets and multiply

2-Cancel common terms

3-Cancel x and x ( Explained in the picture )

4- ANSWER IS 2