Tweeterm als gem. factor (3)

Hoofdmenu Eentje per keer  🖨

Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

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

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Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

Verbetersleutel

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