The factorisation of $4 x^{2}+8 x+3$ is
$(2 x+1)(2 x+3)$
$(x+1)(x+3)$
$(2 x+2)(2 x+5)$
$(2 x-1)(2 x-3)$
$4 x^{2}+8 x+3=4 x^{2}+6 x+2 x+3$
$=2 x(2 x+3)+1(2 x+3)=(2 x+1)(2 x+3)$
Hence, $(a)$ is the correct answer.
Factorise
$x^{3}+12 x^{2}+39 x+28$
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 are polynomials in one variable and which are not $?$ State reason for your answer. If the given expression is a polynomial, state whether it is a polynomial in one variable or not
$x^{3}+y^{3}+z^{3}-3 x y z$
Classify the following as a constant, linear,quadratic and cubic polynomials:
$3$
$x^{3}-8 y^{3}-27-18 x y$
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