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