Question

If 3 is zero of the polynomial x^2+mx-6, then find the value of m.

Answer 1

Answer:

m=-1

Step-by-step explanation:

p(x)= x^2+mx-6

p(3)=3^2+m*3-6

=9+3m-6

=9-6+3m

=3+3m

3+3m=0

3m= -3

m=-3/3

m=-1

Answer 2

Answer:

11. If 3 is a zero of the polynomial

% + 2 & 6 then find the value of 6