Factorise
$\frac{x^{2}}{4}+\frac{3 x y}{5}+\frac{9 y^{2}}{25}$
$\left(\frac{1}{2} x+\frac{3}{5} y\right)^{2}$
Write the degree of the following polynomials
$7 x^{3}-9 x^{2}+4 x-22$
……….is one of the zeros of the polynomial $x^{3}-3 x^{2}-5 x+15$
The following expressions are polynomials? Justify your answer:
$\frac{1}{5 x^{-2}}+5 x+7$
Give possible expressions for the length and breadth of the rectangle whose area is given by $4 a^{2}+4 a-3$
The coefficient of $x$ in the expansion of $(x+3)^{3}$ is
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