a: \(8x^3+27y^3\)
\(=\left(2x\right)^3+\left(3y\right)^3\)
\(=\left(2x+3y\right)\left(4x^2-6xy+9y^2\right)\)
b: \(x^3-y^6\)
\(=x^3-\left(y^2\right)^3\)
\(=\left(x-y^2\right)\left(x^2+xy^2+y^4\right)\)
c: \(27x^3-125\)
\(=\left(3x\right)^3-5^3\)
\(=\left(3x-5\right)\left(9x^2+15x+25\right)\)
d: \(8y^3+27\)
\(=\left(2y\right)^3+3^3\)
\(=\left(2y+3\right)\left(4y^2-6y+9\right)\)

