Zonder de gemeenschappelijke tweeterm af en 'kuis op'.
- \((p-6)(p-4)+(3p-1)(p-6)\)
- \((3p-2)^2-(6p-4)\)
- \((y-2)^2+(3y-6)\)
- \((q+6)(q-8)-(2q-6)(q+6)\)
- \((x-1)^2-(5x-5)\)
- \((x-1)(x+7)-(5x-2)(x-1)\)
- \((7q-8)(q+1)-(7q-8)(2q-7)\)
- \((4s+9)(s-7)+(4s+9)(5s-3)\)
- \((5y-4)^2+(20y-16)\)
- \((5a+6)^2+(25a+30)\)
- \((6s-9)(s-9)-(6s-9)(5s+7)\)
- \((3b+4)^2-(15b+20)\)
Zonder de gemeenschappelijke tweeterm af en 'kuis op'.
Verbetersleutel
- \((p-6)(p-4)+(3p-1)(p-6)\\=(p-6)(p-4+3p-1)\\=(p-6)(4p-5)\)
- \((3p-2)^2-(6p-4)\\=(3p-2)(3p-2)-2(3p-2)\\=(3p-4)(3p-2)\)
- \((y-2)^2+(3y-6)\\=(y-2)(y-2)+3(y-2)\\=(y+1)(y-2)\)
- \((q+6)(q-8)-(2q-6)(q+6)\\=(q+6)(q-8-2q+6)\\=(q+6)(-q-2)\)
- \((x-1)^2-(5x-5)\\=(x-1)(x-1)-5(x-1)\\=(x-6)(x-1)\)
- \((x-1)(x+7)-(5x-2)(x-1)\\=(x-1)(x+7-5x+2)\\=(x-1)(-4x+9)\)
- \((7q-8)(q+1)-(7q-8)(2q-7)\\=(7q-8)(q+1-2q+7)\\=(7q-8)(-q+8)\)
- \((4s+9)(s-7)+(4s+9)(5s-3)\\=(4s+9)(s-7+5s-3)\\=(4s+9)(6s-10)\)
- \((5y-4)^2+(20y-16)\\=(5y-4)(5y-4)+4(5y-4)\\=(5y+0)(5y-4)\)
- \((5a+6)^2+(25a+30)\\=(5a+6)(5a+6)+5(5a+6)\\=(5a+11)(5a+6)\)
- \((6s-9)(s-9)-(6s-9)(5s+7)\\=(6s-9)(s-9-5s-7)\\=(6s-9)(-4s-16)\)
- \((3b+4)^2-(15b+20)\\=(3b+4)(3b+4)-5(3b+4)\\=(3b-1)(3b+4)\)