Question

If x + 1 is a
factor of
3x²+x-k then. What is the value of k?​

Answer 1

Answer:

Correct option is

A

-3

Consider the given polynomials x−1,3x2+mx

Given that x−1 is factor of 3x2+mx

So,

  x−1=0

 x=1

x=1 will satisfied 3x2+mx

Now,

  3x2+mx=1

 3.12+m×1=0

 3+m=0

 m=−3

Hence this is the answer

Step-by-step explanation:

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