Tweeterm als gem. factor (3)

Hoofdmenu Eentje per keer  🖨

Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

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

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Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

Verbetersleutel

1. \((q+7)(q-5)-(3q+3)(q+7)\\=(q+7)(q-5-3q-3)\\=(q+7)(-2q-8)\)
2. \((8q+3)^2-(32q+12)\\=(8q+3)(8q+3)-4(8q+3)\\=(8q-1)(8q+3)\)
3. \((3a-5)(a+6)+(3a-5)(2a+1)\\=(3a-5)(a+6+2a+1)\\=(3a-5)(3a+7)\)
4. \((7b+7)(b-7)+(7b+7)(2b-9)\\=(7b+7)(b-7+2b-9)\\=(7b+7)(3b-16)\)
5. \((s+7)(s+5)-(2s+6)(s+7)\\=(s+7)(s+5-2s-6)\\=(s+7)(-s-1)\)
6. \((p+8)(p-1)+(5p-7)(p+8)\\=(p+8)(p-1+5p-7)\\=(p+8)(6p-8)\)
7. \((7p-1)(p+9)-(7p-1)(3p-6)\\=(7p-1)(p+9-3p+6)\\=(7p-1)(-2p+15)\)
8. \((6s+1)^2+(18s+3)\\=(6s+1)(6s+1)+3(6s+1)\\=(6s+4)(6s+1)\)
9. \((b-2)(b+1)+(3b+7)(b-2)\\=(b-2)(b+1+3b+7)\\=(b-2)(4b+8)\)
10. \((p-2)^2+(5p-10)\\=(p-2)(p-2)+5(p-2)\\=(p+3)(p-2)\)
11. \((5x+4)(x+1)+(5x+4)(4x+4)\\=(5x+4)(x+1+4x+4)\\=(5x+4)(5x+5)\)
12. \((8p-1)(p-2)+(8p-1)(5p-1)\\=(8p-1)(p-2+5p-1)\\=(8p-1)(6p-3)\)