Tweeterm als gem. factor (3)

Hoofdmenu Eentje per keer  🖨

Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

1. \((s+5)(s+9)+(2s-8)(s+5)\)
2. \((7q-6)^2+(35q-30)\)
3. \((3q+1)(q-7)+(3q+1)(4q+7)\)
4. \((p+3)(p+3)-(3p-7)(p+3)\)
5. \((3a-1)(a-8)+(3a-1)(2a-4)\)
6. \((8a+1)^2-(32a+4)\)
7. \((7s-4)(s-4)+(7s-4)(2s-6)\)
8. \((a-1)(a-6)+(2a-4)(a-1)\)
9. \((7p-5)(p+8)-(7p-5)(3p-8)\)
10. \((x+4)(x-2)+(5x-5)(x+4)\)
11. \((b+2)(b-2)-(5b+7)(b+2)\)
12. \((y-8)(y-6)+(3y+3)(y-8)\)

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Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

Verbetersleutel

1. \((s+5)(s+9)+(2s-8)(s+5)\\=(s+5)(s+9+2s-8)\\=(s+5)(3s+1)\)
2. \((7q-6)^2+(35q-30)\\=(7q-6)(7q-6)+5(7q-6)\\=(7q-1)(7q-6)\)
3. \((3q+1)(q-7)+(3q+1)(4q+7)\\=(3q+1)(q-7+4q+7)\\=(3q+1)(5q+0)\)
4. \((p+3)(p+3)-(3p-7)(p+3)\\=(p+3)(p+3-3p+7)\\=(p+3)(-2p+10)\)
5. \((3a-1)(a-8)+(3a-1)(2a-4)\\=(3a-1)(a-8+2a-4)\\=(3a-1)(3a-12)\)
6. \((8a+1)^2-(32a+4)\\=(8a+1)(8a+1)-4(8a+1)\\=(8a-3)(8a+1)\)
7. \((7s-4)(s-4)+(7s-4)(2s-6)\\=(7s-4)(s-4+2s-6)\\=(7s-4)(3s-10)\)
8. \((a-1)(a-6)+(2a-4)(a-1)\\=(a-1)(a-6+2a-4)\\=(a-1)(3a-10)\)
9. \((7p-5)(p+8)-(7p-5)(3p-8)\\=(7p-5)(p+8-3p+8)\\=(7p-5)(-2p+16)\)
10. \((x+4)(x-2)+(5x-5)(x+4)\\=(x+4)(x-2+5x-5)\\=(x+4)(6x-7)\)
11. \((b+2)(b-2)-(5b+7)(b+2)\\=(b+2)(b-2-5b-7)\\=(b+2)(-4b-9)\)
12. \((y-8)(y-6)+(3y+3)(y-8)\\=(y-8)(y-6+3y+3)\\=(y-8)(4y-3)\)