Question

1 is a factor of x³ +3x²+3x+a find a

Answer 1

Answer:

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

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Answer 2

Answer:

a is equal to 1

Step-by-step explanation:

let p(x)=x³+3x²+3x+a

since (x+1) is a factor of p(x) then, p(-1)=0

putting value of x as -1, we get

0= -1+3-3+a

1=a