Tweeterm als gem. factor (3)

Hoofdmenu Eentje per keer  🖨

Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

1. \((3s+6)(s+6)-(3s+6)(4s-2)\)
2. \((5q-5)(q-4)+(5q-5)(3q-3)\)
3. \((p-9)^2+(3p-27)\)
4. \((q-5)(q-5)+(2q+7)(q-5)\)
5. \((s+9)(s-4)-(5s-5)(s+9)\)
6. \((b+7)(b-9)+(5b+5)(b+7)\)
7. \((2p+1)^2+(6p+3)\)
8. \((a-4)(a+1)-(5a+4)(a-4)\)
9. \((6x+1)^2-(12x+2)\)
10. \((6a-5)^2-(18a-15)\)
11. \((7q+3)(q-5)-(7q+3)(3q+6)\)
12. \((y-7)(y+6)-(4y-5)(y-7)\)

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Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

Verbetersleutel

1. \((3s+6)(s+6)-(3s+6)(4s-2)\\=(3s+6)(s+6-4s+2)\\=(3s+6)(-3s+8)\)
2. \((5q-5)(q-4)+(5q-5)(3q-3)\\=(5q-5)(q-4+3q-3)\\=(5q-5)(4q-7)\)
3. \((p-9)^2+(3p-27)\\=(p-9)(p-9)+3(p-9)\\=(p-6)(p-9)\)
4. \((q-5)(q-5)+(2q+7)(q-5)\\=(q-5)(q-5+2q+7)\\=(q-5)(3q+2)\)
5. \((s+9)(s-4)-(5s-5)(s+9)\\=(s+9)(s-4-5s+5)\\=(s+9)(-4s+1)\)
6. \((b+7)(b-9)+(5b+5)(b+7)\\=(b+7)(b-9+5b+5)\\=(b+7)(6b-4)\)
7. \((2p+1)^2+(6p+3)\\=(2p+1)(2p+1)+3(2p+1)\\=(2p+4)(2p+1)\)
8. \((a-4)(a+1)-(5a+4)(a-4)\\=(a-4)(a+1-5a-4)\\=(a-4)(-4a-3)\)
9. \((6x+1)^2-(12x+2)\\=(6x+1)(6x+1)-2(6x+1)\\=(6x-1)(6x+1)\)
10. \((6a-5)^2-(18a-15)\\=(6a-5)(6a-5)-3(6a-5)\\=(6a-8)(6a-5)\)
11. \((7q+3)(q-5)-(7q+3)(3q+6)\\=(7q+3)(q-5-3q-6)\\=(7q+3)(-2q-11)\)
12. \((y-7)(y+6)-(4y-5)(y-7)\\=(y-7)(y+6-4y+5)\\=(y-7)(-3y+11)\)