1. 27 y³ — 125

=3³y³-5³

=(3y^3)-5

=(3y-5)(3y^2)+3y×5+5²)

=(3y-5)×(9y+15y+25)

2. 125x³ + 1000

=125(x^3+8)

=125(x+2)(x²-2x+4)

1. 27 y³ — 125= (3y-5)×(9y+15y+25)
2. 125x³ + 1000 = 125(x+2)(x²-2x+4)

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