Tweeterm als gem. factor (3)

Hoofdmenu Eentje per keer  🖨

Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

1. \((s-3)(s-5)-(3s+2)(s-3)\)
2. \((3a-2)(a-9)+(3a-2)(4a+9)\)
3. \((6b-5)^2-(18b-15)\)
4. \((q+2)(q+7)+(2q-9)(q+2)\)
5. \((s+4)(s+7)-(4s-3)(s+4)\)
6. \((2y-8)(y-5)-(2y-8)(5y-3)\)
7. \((6p+1)^2+(18p+3)\)
8. \((8s+1)^2-(16s+2)\)
9. \((3a-2)(a-7)+(3a-2)(5a+5)\)
10. \((a+5)^2+(5a+25)\)
11. \((5y-7)(y-4)-(5y-7)(2y-4)\)
12. \((7p+4)(p+6)+(7p+4)(3p+9)\)

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Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

Verbetersleutel

1. \((s-3)(s-5)-(3s+2)(s-3)\\=(s-3)(s-5-3s-2)\\=(s-3)(-2s-7)\)
2. \((3a-2)(a-9)+(3a-2)(4a+9)\\=(3a-2)(a-9+4a+9)\\=(3a-2)(5a+0)\)
3. \((6b-5)^2-(18b-15)\\=(6b-5)(6b-5)-3(6b-5)\\=(6b-8)(6b-5)\)
4. \((q+2)(q+7)+(2q-9)(q+2)\\=(q+2)(q+7+2q-9)\\=(q+2)(3q-2)\)
5. \((s+4)(s+7)-(4s-3)(s+4)\\=(s+4)(s+7-4s+3)\\=(s+4)(-3s+10)\)
6. \((2y-8)(y-5)-(2y-8)(5y-3)\\=(2y-8)(y-5-5y+3)\\=(2y-8)(-4y-2)\)
7. \((6p+1)^2+(18p+3)\\=(6p+1)(6p+1)+3(6p+1)\\=(6p+4)(6p+1)\)
8. \((8s+1)^2-(16s+2)\\=(8s+1)(8s+1)-2(8s+1)\\=(8s-1)(8s+1)\)
9. \((3a-2)(a-7)+(3a-2)(5a+5)\\=(3a-2)(a-7+5a+5)\\=(3a-2)(6a-2)\)
10. \((a+5)^2+(5a+25)\\=(a+5)(a+5)+5(a+5)\\=(a+10)(a+5)\)
11. \((5y-7)(y-4)-(5y-7)(2y-4)\\=(5y-7)(y-4-2y+4)\\=(5y-7)(-y+0)\)
12. \((7p+4)(p+6)+(7p+4)(3p+9)\\=(7p+4)(p+6+3p+9)\\=(7p+4)(4p+15)\)