Question

How many zeroes of the polynomial $ax+b$ are there? Also find its zero(s).

Answer 1

Polynomial, $P\left(x\right)=ax+b$

Zeroes of the polynomial are the solution of $P\left(x\right)=0$

$ax+b=0$

$ax=-b$

$x=-\frac{b}{a}$

There is only one solution. So the polynomial has one zero at $x=-\frac{b}{a}$