As per given by the question,
There are given that the equation,
Now,
From the given equation,
According to there are already given that original polynomial, x+1;
That means,
There is one point is already given for satisfied the quadratic equation.
Now,
For the two another factor;
If take the (x+1) factor from the given equation,
Then,
The equation becomes;
So,
The equation and factor is,
Then the final factor of tyhe given quadratic equation is,
Hence, the equation and their factor and final factor is;
And, the final factor is;