Perkalian (3x-2)(3x²-4x+5) menghasilkan

9x³-12x²+15x-6x²+8x-10 = 9x³-12x²-6x²+15x+8x-10 = 9x³-18x²+23x-10

(3x-2)(3x²-4x+5) = 9x³-12x²+15x-6x²+8x-10
=9x³-12x²-6x²+15x+8x-10
=9x³-18x²+23x-10