Tweeterm als gem. factor (3)

Hoofdmenu Eentje per keer  🖨

Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

1. \((4s+1)(s+6)-(4s+1)(3s+1)\)
2. \((2p+1)^2-(8p+4)\)
3. \((8x-7)^2+(32x-28)\)
4. \((y+1)(y+5)-(5y-5)(y+1)\)
5. \((2a+7)(a+7)+(2a+7)(3a+1)\)
6. \((p-9)(p-8)+(5p-8)(p-9)\)
7. \((q-1)(q+3)+(2q+4)(q-1)\)
8. \((8y+1)^2-(24y+3)\)
9. \((s-8)(s-5)-(3s-7)(s-8)\)
10. \((3q-5)(q-6)-(3q-5)(2q-3)\)
11. \((5a+1)(a+5)-(5a+1)(4a+2)\)
12. \((s+7)(s+2)-(4s-4)(s+7)\)

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Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

Verbetersleutel

1. \((4s+1)(s+6)-(4s+1)(3s+1)\\=(4s+1)(s+6-3s-1)\\=(4s+1)(-2s+5)\)
2. \((2p+1)^2-(8p+4)\\=(2p+1)(2p+1)-4(2p+1)\\=(2p-3)(2p+1)\)
3. \((8x-7)^2+(32x-28)\\=(8x-7)(8x-7)+4(8x-7)\\=(8x-3)(8x-7)\)
4. \((y+1)(y+5)-(5y-5)(y+1)\\=(y+1)(y+5-5y+5)\\=(y+1)(-4y+10)\)
5. \((2a+7)(a+7)+(2a+7)(3a+1)\\=(2a+7)(a+7+3a+1)\\=(2a+7)(4a+8)\)
6. \((p-9)(p-8)+(5p-8)(p-9)\\=(p-9)(p-8+5p-8)\\=(p-9)(6p-16)\)
7. \((q-1)(q+3)+(2q+4)(q-1)\\=(q-1)(q+3+2q+4)\\=(q-1)(3q+7)\)
8. \((8y+1)^2-(24y+3)\\=(8y+1)(8y+1)-3(8y+1)\\=(8y-2)(8y+1)\)
9. \((s-8)(s-5)-(3s-7)(s-8)\\=(s-8)(s-5-3s+7)\\=(s-8)(-2s+2)\)
10. \((3q-5)(q-6)-(3q-5)(2q-3)\\=(3q-5)(q-6-2q+3)\\=(3q-5)(-q-3)\)
11. \((5a+1)(a+5)-(5a+1)(4a+2)\\=(5a+1)(a+5-4a-2)\\=(5a+1)(-3a+3)\)
12. \((s+7)(s+2)-(4s-4)(s+7)\\=(s+7)(s+2-4s+4)\\=(s+7)(-3s+6)\)