Tweeterm als gem. factor (3)

Hoofdmenu Eentje per keer  🖨

Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

1. \((9p-4)^2-(36p-16)\)
2. \((a-5)(a-6)+(2a-3)(a-5)\)
3. \((3p-1)(p-8)-(3p-1)(4p+6)\)
4. \((4s+7)^2-(20s+35)\)
5. \((p+6)(p+6)+(5p+3)(p+6)\)
6. \((y-8)(y-8)-(4y+5)(y-8)\)
7. \((b-3)(b-4)-(3b+9)(b-3)\)
8. \((6b+5)^2+(18b+15)\)
9. \((p+1)(p+9)+(4p-3)(p+1)\)
10. \((3a+5)^2+(12a+20)\)
11. \((3p+9)(p-5)-(3p+9)(4p+3)\)
12. \((8y+3)^2-(24y+9)\)

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Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

Verbetersleutel

1. \((9p-4)^2-(36p-16)\\=(9p-4)(9p-4)-4(9p-4)\\=(9p-8)(9p-4)\)
2. \((a-5)(a-6)+(2a-3)(a-5)\\=(a-5)(a-6+2a-3)\\=(a-5)(3a-9)\)
3. \((3p-1)(p-8)-(3p-1)(4p+6)\\=(3p-1)(p-8-4p-6)\\=(3p-1)(-3p-14)\)
4. \((4s+7)^2-(20s+35)\\=(4s+7)(4s+7)-5(4s+7)\\=(4s+2)(4s+7)\)
5. \((p+6)(p+6)+(5p+3)(p+6)\\=(p+6)(p+6+5p+3)\\=(p+6)(6p+9)\)
6. \((y-8)(y-8)-(4y+5)(y-8)\\=(y-8)(y-8-4y-5)\\=(y-8)(-3y-13)\)
7. \((b-3)(b-4)-(3b+9)(b-3)\\=(b-3)(b-4-3b-9)\\=(b-3)(-2b-13)\)
8. \((6b+5)^2+(18b+15)\\=(6b+5)(6b+5)+3(6b+5)\\=(6b+8)(6b+5)\)
9. \((p+1)(p+9)+(4p-3)(p+1)\\=(p+1)(p+9+4p-3)\\=(p+1)(5p+6)\)
10. \((3a+5)^2+(12a+20)\\=(3a+5)(3a+5)+4(3a+5)\\=(3a+9)(3a+5)\)
11. \((3p+9)(p-5)-(3p+9)(4p+3)\\=(3p+9)(p-5-4p-3)\\=(3p+9)(-3p-8)\)
12. \((8y+3)^2-(24y+9)\\=(8y+3)(8y+3)-3(8y+3)\\=(8y+0)(8y+3)\)