33: \(=\left(2-x\right)\left(4+2x+x^2\right)\)
34: \(=\left(2x+3\right)\left(4x^2-6x+9\right)\)
35: \(=x^3+64\)
36: \(=x^3-8\)
38: \(=\left(3x^2-5y\right)\left(3x^2+5y\right)\)
39: \(=\left(3x-2y\right)\left(9x^2+6xy+4y^2\right)\)
\(33,=\left(2-x\right)\left(4+2x+x^2\right)\\ 34,=\left(3+2x\right)\left(9-6x+4x^2\right)\\ 35,=\left(x^3-64\right)\\ 36,=\left(x^3-8\right)\\ 37,=4-2.2.3xy+9x^2y^2=4-12xy+9x^2y^2\\ 38,=\left(3x^2-5y\right)\left(3x^2+5y\right)\\ 39,=\left(3x-2y\right)\left(9x^2+6xy+4y^2\right)\\ 40,=4x^2-12xyz+9y^2z^2\)