Tweeterm als gem. factor (3)

Hoofdmenu Eentje per keer  🖨

Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

1. \((2y-1)(y-7)+(2y-1)(5y+7)\)
2. \((6p-7)(p-9)-(6p-7)(5p-6)\)
3. \((b-2)(b-8)+(4b-5)(b-2)\)
4. \((3p-7)(p-2)-(3p-7)(4p+9)\)
5. \((8q-7)^2-(16q-14)\)
6. \((4p-6)(p-3)-(4p-6)(5p+3)\)
7. \((7s+2)(s-1)+(7s+2)(4s+5)\)
8. \((x-1)^2-(3x-3)\)
9. \((5s-5)(s-6)-(5s-5)(2s+7)\)
10. \((4a+3)^2-(16a+12)\)
11. \((q-3)^2-(4q-12)\)
12. \((s-3)(s-6)-(5s-2)(s-3)\)

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Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

Verbetersleutel

1. \((2y-1)(y-7)+(2y-1)(5y+7)\\=(2y-1)(y-7+5y+7)\\=(2y-1)(6y+0)\)
2. \((6p-7)(p-9)-(6p-7)(5p-6)\\=(6p-7)(p-9-5p+6)\\=(6p-7)(-4p-3)\)
3. \((b-2)(b-8)+(4b-5)(b-2)\\=(b-2)(b-8+4b-5)\\=(b-2)(5b-13)\)
4. \((3p-7)(p-2)-(3p-7)(4p+9)\\=(3p-7)(p-2-4p-9)\\=(3p-7)(-3p-11)\)
5. \((8q-7)^2-(16q-14)\\=(8q-7)(8q-7)-2(8q-7)\\=(8q-9)(8q-7)\)
6. \((4p-6)(p-3)-(4p-6)(5p+3)\\=(4p-6)(p-3-5p-3)\\=(4p-6)(-4p-6)\)
7. \((7s+2)(s-1)+(7s+2)(4s+5)\\=(7s+2)(s-1+4s+5)\\=(7s+2)(5s+4)\)
8. \((x-1)^2-(3x-3)\\=(x-1)(x-1)-3(x-1)\\=(x-4)(x-1)\)
9. \((5s-5)(s-6)-(5s-5)(2s+7)\\=(5s-5)(s-6-2s-7)\\=(5s-5)(-s-13)\)
10. \((4a+3)^2-(16a+12)\\=(4a+3)(4a+3)-4(4a+3)\\=(4a-1)(4a+3)\)
11. \((q-3)^2-(4q-12)\\=(q-3)(q-3)-4(q-3)\\=(q-7)(q-3)\)
12. \((s-3)(s-6)-(5s-2)(s-3)\\=(s-3)(s-6-5s+2)\\=(s-3)(-4s-4)\)