Tweeterm als gem. factor (3)

Hoofdmenu Eentje per keer  🖨

Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

1. \((8s+8)(s+4)-(8s+8)(3s-7)\)
2. \((a+6)(a-4)-(3a-5)(a+6)\)
3. \((6b+5)^2-(30b+25)\)
4. \((7q-3)^2+(28q-12)\)
5. \((s+3)(s-7)+(5s-6)(s+3)\)
6. \((4b+1)^2+(8b+2)\)
7. \((s+5)(s+5)-(5s+6)(s+5)\)
8. \((3y+4)(y-4)-(3y+4)(2y-9)\)
9. \((3y-7)(y+6)-(3y-7)(4y+7)\)
10. \((5p-6)(p+1)+(5p-6)(4p-1)\)
11. \((6p-5)(p+3)-(6p-5)(5p+3)\)
12. \((x-5)(x-7)-(4x+3)(x-5)\)

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Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

Verbetersleutel

1. \((8s+8)(s+4)-(8s+8)(3s-7)\\=(8s+8)(s+4-3s+7)\\=(8s+8)(-2s+11)\)
2. \((a+6)(a-4)-(3a-5)(a+6)\\=(a+6)(a-4-3a+5)\\=(a+6)(-2a+1)\)
3. \((6b+5)^2-(30b+25)\\=(6b+5)(6b+5)-5(6b+5)\\=(6b+0)(6b+5)\)
4. \((7q-3)^2+(28q-12)\\=(7q-3)(7q-3)+4(7q-3)\\=(7q+1)(7q-3)\)
5. \((s+3)(s-7)+(5s-6)(s+3)\\=(s+3)(s-7+5s-6)\\=(s+3)(6s-13)\)
6. \((4b+1)^2+(8b+2)\\=(4b+1)(4b+1)+2(4b+1)\\=(4b+3)(4b+1)\)
7. \((s+5)(s+5)-(5s+6)(s+5)\\=(s+5)(s+5-5s-6)\\=(s+5)(-4s-1)\)
8. \((3y+4)(y-4)-(3y+4)(2y-9)\\=(3y+4)(y-4-2y+9)\\=(3y+4)(-y+5)\)
9. \((3y-7)(y+6)-(3y-7)(4y+7)\\=(3y-7)(y+6-4y-7)\\=(3y-7)(-3y-1)\)
10. \((5p-6)(p+1)+(5p-6)(4p-1)\\=(5p-6)(p+1+4p-1)\\=(5p-6)(5p+0)\)
11. \((6p-5)(p+3)-(6p-5)(5p+3)\\=(6p-5)(p+3-5p-3)\\=(6p-5)(-4p+0)\)
12. \((x-5)(x-7)-(4x+3)(x-5)\\=(x-5)(x-7-4x-3)\\=(x-5)(-3x-10)\)