Zonder de gemeenschappelijke tweeterm af en 'kuis op'.
- \((x-5)(x-6)-(2x+8)(x-5)\)
- \((x-7)(x-8)-(3x-3)(x-7)\)
- \((x-6)(x+8)+(4x-3)(x-6)\)
- \((3x-1)(x+2)+(3x-1)(5x+3)\)
- \((6x+8)(x+2)+(6x+8)(5x+3)\)
- \((s+4)(s+4)-(4s-6)(s+4)\)
- \((5a-4)(a+2)-(5a-4)(2a-7)\)
- \((y+8)(y-4)+(3y+4)(y+8)\)
- \((8p+1)^2+(32p+4)\)
- \((2p+4)(p-4)-(2p+4)(3p-9)\)
- \((4a-5)(a-3)+(4a-5)(5a-4)\)
- \((s+1)(s+9)+(2s+8)(s+1)\)
Zonder de gemeenschappelijke tweeterm af en 'kuis op'.
Verbetersleutel
- \((x-5)(x-6)-(2x+8)(x-5)\\=(x-5)(x-6-2x-8)\\=(x-5)(-x-14)\)
- \((x-7)(x-8)-(3x-3)(x-7)\\=(x-7)(x-8-3x+3)\\=(x-7)(-2x-5)\)
- \((x-6)(x+8)+(4x-3)(x-6)\\=(x-6)(x+8+4x-3)\\=(x-6)(5x+5)\)
- \((3x-1)(x+2)+(3x-1)(5x+3)\\=(3x-1)(x+2+5x+3)\\=(3x-1)(6x+5)\)
- \((6x+8)(x+2)+(6x+8)(5x+3)\\=(6x+8)(x+2+5x+3)\\=(6x+8)(6x+5)\)
- \((s+4)(s+4)-(4s-6)(s+4)\\=(s+4)(s+4-4s+6)\\=(s+4)(-3s+10)\)
- \((5a-4)(a+2)-(5a-4)(2a-7)\\=(5a-4)(a+2-2a+7)\\=(5a-4)(-a+9)\)
- \((y+8)(y-4)+(3y+4)(y+8)\\=(y+8)(y-4+3y+4)\\=(y+8)(4y+0)\)
- \((8p+1)^2+(32p+4)\\=(8p+1)(8p+1)+4(8p+1)\\=(8p+5)(8p+1)\)
- \((2p+4)(p-4)-(2p+4)(3p-9)\\=(2p+4)(p-4-3p+9)\\=(2p+4)(-2p+5)\)
- \((4a-5)(a-3)+(4a-5)(5a-4)\\=(4a-5)(a-3+5a-4)\\=(4a-5)(6a-7)\)
- \((s+1)(s+9)+(2s+8)(s+1)\\=(s+1)(s+9+2s+8)\\=(s+1)(3s+17)\)