What are the expressions in column B and column C?

Column B Expressions:

• \((7y+1)(y^2-5y+2)\)
• \((x^2+2x-1)(x-4)\)
• \((a+b)(a^2+5ab-b^2)\)
• \((\alpha^2 - 4\alpha-1)(\alpha-3)\)
• \((x+3)(2x^2-4x-1)\)
• \((x-7)(x^2-5x-6)\)
• \((a-b-1)(a^2-b^2)\)
• \((a^2-b)(a+2b+3)\)
• \((x^2+4x+5)(5x-1)\)
• \((x^2-3x-2)(6x-4)\)
• \((2m-n)(n^2-2m-1)\)
• \((\alpha+2b)(\alpha^2-b^2-1)\)
• \((t^2-3)(t^2-2t+4)\)
• \((4x^2+y^2)(3x-y-5)\)
• \((x-5)(x^3-2x^2-6)\)
• \((-x-7)(x^2+4x-1)\)
• \((8k-q)(k^2-2q^2+3)\)
• \((-n^2-3n-5)(n^2-2)\)
• \((-\alpha^3+\alpha-1)(2\alpha-3)\)
• \((3x^3-y)(y^2-xy+2)\)
• \((xy-2)(x^2-y^2-3)\)

Column C Expressions:

• \(4x-(x-1)(x+3)\)
• \(\alpha^2-(\alpha+b)(\alpha-2b)\)
• \(20+(4-x)(x-5)\)
• \((3x-5)(x+1)-3x^2\)
• \((-4x+6)(-x-2)-4x^2\)
• \(x^2-(x-3)(x-4)-7x\)
• \((2x^2+3y)(3y-2x^2)\)
• \((\alpha^2-b^2)(\alpha^2+b^2)\)
• \((\alpha^2+b)(\alpha^2-b)\)
• \((m+n^2)(m+n^2)\)
• \((2x-3y)(2x+3y)\)
• \((5x^2-1)(5x^2+1)\)
• \((\alpha+2b)(\alpha-2b)\)
• \((p^2-2k)(p^2-2k)\)
• \((c-5)(c-6)-(c^2+30)\)
• \((x-7)(2x+6)+(8x+40)\)
• \((x-8)(x-3)-x(x-11)\)
• \(x(x+2)+(3-x)(5+x)\)
• \((2x-1)(x+7)-(2x^2-7)\)
• \(x(x-1)(x+2)\)
• \((x+3)(x-1)(x-4)(x+2)\)