( (3$x^{2}$ -2y)$^{3}$
($x^{2}$ -$\frac{1}{3}$ ).($x^{4}$ +$\frac{1}{3}$ $x^{2}$ +$\frac{1}{9}$ )
( (3$x^{2}$ -2y)$^{3}$ ($x^{2}$ -$\frac{1}{3}$ ).($x^{4}$ +$\frac{1}{3}$ $x^{2}$ +$\frac{1}{9}$ )
By Aaliyah
By Aaliyah
( (3$x^{2}$ -2y)$^{3}$
($x^{2}$ -$\frac{1}{3}$ ).($x^{4}$ +$\frac{1}{3}$ $x^{2}$ +$\frac{1}{9}$ )
(3x^2-2y^3)
=(3x^2)^3-3(3x^2)^2.2y+2.3x.(2y^2)^2-(2y)^3
=27x^6-54.x^4.y+24x^2.y^2-8y^3
(x^2-1/3).(x^4+1/3.x^2+1/9)
=(x^2-1/3).((x^2)^2+1/3.x^2+(1/3)^2)
=x^3-(1/3)^3