Question

Show that the points (4. 2). (7. 5) and (9.7) do not form a triangle.​

Answer 1

Answer:

p(X)=p(-3)

therefore X=-3

x+3=0 ( you told me)

let put the Value of X=-3

X²+kx-2 = -3×-3+k×-3-2

9-3k-2

7-3k

-7=-3k

7=3k

k=7/3