If the polynomial f(x)=x2+kx-15, is exactly divisible by x-5, then the value of k is _______
A. 3
B. 2
C. -3
D. -2
Answer:D
If the polynomial f(x)=x2+kx-15, is exactly divisible by x-5, then the value of k is _______
A. 3 B. 2 C. -3 D. -2