Write the degree of each of the following polynomials
$x^{50}-1$
$70$
$50$
$60$
$40$
Find the value of the polynomial $3 x^{3}-4 x^{2}+7 x-5,$ when $x=3$
Factorise
$16 x^{2}-40 x y+25 y^{2}$
Verify whether $3$ and $7$ are zeros of the polynomial $x^{2}-5 x-14$ or not.
Verify whether the following are True or False:
$-3$ is a zero of $x-3$
$169 x^{2}-625$
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