Question

if x-3 is a factor of x²+^x+3 then the value is​

Answer 1

Step-by-step explanation:

If g(x) is a factor of f(x), then f(3)=0 ....(By remainder Theorem)

Thus, f(3)=0

=>3

3

+3×3

2

+3×3+p=0

=>27+27+9+p=0

=>p=−63

Answer 2

Answer: 15

Step by step explanation:

Put, x-3=0

x=3

Now,put the value of (x) in the polynomial;

x2 + x + 3 = (3)×(3) +(3) +3

= 9 + 3 + 3

= 9 + 6

= 15.