Tweeterm als gem. factor (3)

Hoofdmenu Eentje per keer  🖨

Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

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

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Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

Verbetersleutel

1. \((7q+7)(q+9)-(7q+7)(4q-3)\\=(7q+7)(q+9-4q+3)\\=(7q+7)(-3q+12)\)
2. \((7p+2)^2+(28p+8)\\=(7p+2)(7p+2)+4(7p+2)\\=(7p+6)(7p+2)\)
3. \((4a+5)(a+1)+(4a+5)(3a+9)\\=(4a+5)(a+1+3a+9)\\=(4a+5)(4a+10)\)
4. \((b-8)(b-3)-(2b+4)(b-8)\\=(b-8)(b-3-2b-4)\\=(b-8)(-b-7)\)
5. \((8p-7)^2+(32p-28)\\=(8p-7)(8p-7)+4(8p-7)\\=(8p-3)(8p-7)\)
6. \((p+4)(p+6)+(3p-6)(p+4)\\=(p+4)(p+6+3p-6)\\=(p+4)(4p+0)\)
7. \((8q-2)(q-1)+(8q-2)(3q-3)\\=(8q-2)(q-1+3q-3)\\=(8q-2)(4q-4)\)
8. \((7q+7)(q-9)+(7q+7)(4q-4)\\=(7q+7)(q-9+4q-4)\\=(7q+7)(5q-13)\)
9. \((5a-5)(a+3)+(5a-5)(4a+5)\\=(5a-5)(a+3+4a+5)\\=(5a-5)(5a+8)\)
10. \((8a-5)^2-(16a-10)\\=(8a-5)(8a-5)-2(8a-5)\\=(8a-7)(8a-5)\)
11. \((y+3)(y-6)+(4y-1)(y+3)\\=(y+3)(y-6+4y-1)\\=(y+3)(5y-7)\)
12. \((p-7)(p+1)+(4p-4)(p-7)\\=(p-7)(p+1+4p-4)\\=(p-7)(5p-3)\)