Question

lf $f\left(x\right)=0$ is a reciprocal equation of first type and odd degree, then a factor of $f\left(x\right)$ is:

• A. $x-2$
• B. $x-1$
• C. $x$
• D. $x+1$

Answer 1

The correct option is D $x+1$

When the reciprocal equation is of an odd degree, $x=-1$ is always a solution.
So, $x+1$ is a factor.