Evaluate using suitable identities : $(104)^{3}$
$1124864$
$1088844$
$1126866$
$1224844$
We have
$(104)^{3}=(100+4)^{3}$
$=(100)^{3}+(4)^{3}+3(100)(4)(100+4)$
(Using Identity $VI$)
$=1000000+64+124800$
$=1124864$
Factorise : $2 y^{3}+y^{2}-2 y-1$
Find the zero of the polynomial : $p(x) = 3x -2$
Evaluate the following products without multiplying directly : $104 \times 96$
Verify whether the following are zeroes of the polynomial, indicated against them.
$p(x)=x^{2}-1, \,x=1,\,-1$
Find the zero of the polynomial : $p(x) = x -5$
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