Why must the constant of the divisor be negated in synthetic division?
For example, if one was dividing a polynomial by $x+a$, $a$ must be changed to $-a$. Why is this?
Why must the constant of the divisor be negated in synthetic division?
For example, if one was dividing a polynomial by $x+a$, $a$ must be changed to $-a$. Why is this?