Multiply $x^{2}+4 y^{2}+z^{2}+2 x y+x z-2 y z$ by $(-z+x-2 y)$

Write the degree of the following polynomials

$\sqrt{11} t+14$

Evaluate the following using suitable identities

$(107)^{2}$

Expand

$(3 x+5)^{2}$

Write the following cubes in expanded form

$(3 x+2 y)^{3}$