Tweeterm als gem. factor (3)

Hoofdmenu Eentje per keer  🖨

Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

1. \((3a-4)(a+8)+(3a-4)(4a-8)\)
2. \((3x-3)(x+1)+(3x-3)(4x+3)\)
3. \((x+8)^2+(4x+32)\)
4. \((6b+1)^2-(18b+3)\)
5. \((3p-6)(p+7)+(3p-6)(5p+2)\)
6. \((s+8)(s+4)+(4s+7)(s+8)\)
7. \((8y-5)^2-(24y-15)\)
8. \((s+2)(s-4)-(3s+7)(s+2)\)
9. \((a+1)(a+9)+(5a+5)(a+1)\)
10. \((2s+3)^2-(6s+9)\)
11. \((7a+2)(a+9)+(7a+2)(3a-8)\)
12. \((7s+1)(s+4)-(7s+1)(3s-7)\)

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Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

Verbetersleutel

1. \((3a-4)(a+8)+(3a-4)(4a-8)\\=(3a-4)(a+8+4a-8)\\=(3a-4)(5a+0)\)
2. \((3x-3)(x+1)+(3x-3)(4x+3)\\=(3x-3)(x+1+4x+3)\\=(3x-3)(5x+4)\)
3. \((x+8)^2+(4x+32)\\=(x+8)(x+8)+4(x+8)\\=(x+12)(x+8)\)
4. \((6b+1)^2-(18b+3)\\=(6b+1)(6b+1)-3(6b+1)\\=(6b-2)(6b+1)\)
5. \((3p-6)(p+7)+(3p-6)(5p+2)\\=(3p-6)(p+7+5p+2)\\=(3p-6)(6p+9)\)
6. \((s+8)(s+4)+(4s+7)(s+8)\\=(s+8)(s+4+4s+7)\\=(s+8)(5s+11)\)
7. \((8y-5)^2-(24y-15)\\=(8y-5)(8y-5)-3(8y-5)\\=(8y-8)(8y-5)\)
8. \((s+2)(s-4)-(3s+7)(s+2)\\=(s+2)(s-4-3s-7)\\=(s+2)(-2s-11)\)
9. \((a+1)(a+9)+(5a+5)(a+1)\\=(a+1)(a+9+5a+5)\\=(a+1)(6a+14)\)
10. \((2s+3)^2-(6s+9)\\=(2s+3)(2s+3)-3(2s+3)\\=(2s+0)(2s+3)\)
11. \((7a+2)(a+9)+(7a+2)(3a-8)\\=(7a+2)(a+9+3a-8)\\=(7a+2)(4a+1)\)
12. \((7s+1)(s+4)-(7s+1)(3s-7)\\=(7s+1)(s+4-3s+7)\\=(7s+1)(-2s+11)\)