Factorise each of the following
$64 x^{3}+125 y^{3}+240 x^{2} y+300 x y^{2}$
$(4 x+5 y)(4 x+5 y)(4 x+5 y)$
Evaluate
$(153)^{2}$
$4 x^{2}-20 x+25=(\ldots \ldots \ldots)^{2}$
Factorise
$6 x^{3}+7 x^{2}-14 x-15$
What should be subtracted from $p(x)=x^{2}+9 x+20,$ so that the resulting polynomial is divisible by $x+2 ?$
Which of the following expressions is a polynomial, state the reason ? If an expression is polynomial, state whether it is a polynomial in one variable or not
$x^{2}+y^{2}+z^{2}+2 x y+2 y z+2 z x$
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