The value of a and b, for which
8 {x}^{3} - a {x}^{2} + 54x + b8x3−ax2+54x+b will
be a perfect cube, are?
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Step-by-step explanation:
(c-d)^3=c^3-3c^2d+3cd^2-d^3
on comparing
c^3=8x^3
c=2x
3*2x*d^2=54x
d^2=9
d=3
(2x-3)^3
=8x^3-36x^2+54x-27
a=36. b=-27
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