= (x^2 + 4x + 3)(c^2 + 10c + 16)(a^2 - a - 12)(b^2 + 3b - 10)(m^2 - 13m + 22)(u^2 + u - 30)= x^2c^2a^2b^2m^2u^2 + 10x^2c^2a^2b^2m^2u + 16x^2c^2a^2b^2m^2 - x^2c^2a^2b^2m^2 - 12x^2c^2a^2b^2m + 10x^2c^2a^2b^2m + 160x^2c^2a^2b^2 - 16x^2c^2a^2b^2 - 192x^2c^2a^2b + 12x^2c^2a^2b + 144x^2c^2a^2 - 10x^2c^2a^2b^2m - 96x^2c^2a^2b - 144x^2c^2a^2 + 12x^2c^2a^2b^2 + 96x^2c^2a^2b + 144x^2c^2a^2 - 16x^2c^2a^2b^2 - 192x^2c^2a^2b - 288x^2c^2a^2 + x^2c...
= (x^2 + 4x + 3)(c^2 + 10c + 16)(a^2 - a - 12)(b^2 + 3b - 10)(m^2 - 13m + 22)(u^2 + u - 30)
= x^2c^2a^2b^2m^2u^2 + 10x^2c^2a^2b^2m^2u + 16x^2c^2a^2b^2m^2 - x^2c^2a^2b^2m^2 - 12x^2c^2a^2b^2m + 10x^2c^2a^2b^2m + 160x^2c^2a^2b^2 - 16x^2c^2a^2b^2 - 192x^2c^2a^2b + 12x^2c^2a^2b + 144x^2c^2a^2 - 10x^2c^2a^2b^2m - 96x^2c^2a^2b - 144x^2c^2a^2 + 12x^2c^2a^2b^2 + 96x^2c^2a^2b + 144x^2c^2a^2 - 16x^2c^2a^2b^2 - 192x^2c^2a^2b - 288x^2c^2a^2 + x^2c...