Tweeterm als gem. factor (3)

Hoofdmenu Eentje per keer  🖨

Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

1. \((5b-6)(b-1)+(5b-6)(4b-1)\)
2. \((5b+3)(b-3)+(5b+3)(4b+6)\)
3. \((3q+7)(q-8)-(3q+7)(4q+7)\)
4. \((s+8)(s-4)-(2s+4)(s+8)\)
5. \((s-5)(s-1)+(5s-4)(s-5)\)
6. \((x-2)(x-2)-(3x+8)(x-2)\)
7. \((8y-7)^2-(40y-35)\)
8. \((a-3)(a-9)+(2a-1)(a-3)\)
9. \((6y+7)^2-(24y+28)\)
10. \((6y-4)(y+1)-(6y-4)(5y+3)\)
11. \((5s+8)(s-2)+(5s+8)(2s-4)\)
12. \((3y-8)^2+(9y-24)\)

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Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

Verbetersleutel

1. \((5b-6)(b-1)+(5b-6)(4b-1)\\=(5b-6)(b-1+4b-1)\\=(5b-6)(5b-2)\)
2. \((5b+3)(b-3)+(5b+3)(4b+6)\\=(5b+3)(b-3+4b+6)\\=(5b+3)(5b+3)\)
3. \((3q+7)(q-8)-(3q+7)(4q+7)\\=(3q+7)(q-8-4q-7)\\=(3q+7)(-3q-15)\)
4. \((s+8)(s-4)-(2s+4)(s+8)\\=(s+8)(s-4-2s-4)\\=(s+8)(-s-8)\)
5. \((s-5)(s-1)+(5s-4)(s-5)\\=(s-5)(s-1+5s-4)\\=(s-5)(6s-5)\)
6. \((x-2)(x-2)-(3x+8)(x-2)\\=(x-2)(x-2-3x-8)\\=(x-2)(-2x-10)\)
7. \((8y-7)^2-(40y-35)\\=(8y-7)(8y-7)-5(8y-7)\\=(8y-12)(8y-7)\)
8. \((a-3)(a-9)+(2a-1)(a-3)\\=(a-3)(a-9+2a-1)\\=(a-3)(3a-10)\)
9. \((6y+7)^2-(24y+28)\\=(6y+7)(6y+7)-4(6y+7)\\=(6y+3)(6y+7)\)
10. \((6y-4)(y+1)-(6y-4)(5y+3)\\=(6y-4)(y+1-5y-3)\\=(6y-4)(-4y-2)\)
11. \((5s+8)(s-2)+(5s+8)(2s-4)\\=(5s+8)(s-2+2s-4)\\=(5s+8)(3s-6)\)
12. \((3y-8)^2+(9y-24)\\=(3y-8)(3y-8)+3(3y-8)\\=(3y-5)(3y-8)\)