Tweeterm als gem. factor (3)

Hoofdmenu Eentje per keer  🖨

Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

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

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Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

Verbetersleutel

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