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$(2 x-y-5)^{2}$

Find the value of the polynomial $x^{2}-7 x+12$ at.

$x=-2$

Give possible expressions for the length and breadth of the rectangle whose area is given by $4 a^{2}+4 a-3$

State whether each of the following statements is true or false

In polynomial $5 x^{3}-3 x^{2}+11 x-14,$ the coefficient of $x^{3}$ is $3.$

For $p(x)=x^{3}+9 x^{2}+26 x+24$ $p(-2)=\ldots \ldots \ldots$