$4 x^{2}-20 x+25=(\ldots \ldots \ldots)^{2}$
$x+5$
$x-5$
$2 x-5$
$2 x+5$
Find the zero of the polynomial in each of the following cases
$q(y)=\pi y+3.14$
From the following polynomials find out which of them has $(x+1)$ as a factor
$x^{3}-2 x^{2}-5 x+6$
Factorise
$x^{3}-11 x^{2}+20 x+32$
Find the quotient and the remainder when $x^{3}+x^{2}-10 x+8$ is divided by
$x+3$
Determine the degree of each of the following polynomials:
$2 x-1$
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