Tweeterm als gem. factor (3)

Hoofdmenu Eentje per keer  🖨

Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

1. \((9x+7)^2+(18x+14)\)
2. \((3s-4)(s-9)-(3s-4)(4s+9)\)
3. \((4a+3)^2+(16a+12)\)
4. \((5y+6)(y+8)+(5y+6)(2y+9)\)
5. \((s-8)(s+7)+(2s-4)(s-8)\)
6. \((b+6)(b+8)+(2b+8)(b+6)\)
7. \((5x+9)(x-5)-(5x+9)(4x-3)\)
8. \((5a-7)^2+(20a-28)\)
9. \((5y-5)(y-5)-(5y-5)(2y+9)\)
10. \((b+2)(b-3)+(2b-6)(b+2)\)
11. \((8p+1)^2+(24p+3)\)
12. \((p-6)(p+8)+(2p-1)(p-6)\)

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Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

Verbetersleutel

1. \((9x+7)^2+(18x+14)\\=(9x+7)(9x+7)+2(9x+7)\\=(9x+9)(9x+7)\)
2. \((3s-4)(s-9)-(3s-4)(4s+9)\\=(3s-4)(s-9-4s-9)\\=(3s-4)(-3s-18)\)
3. \((4a+3)^2+(16a+12)\\=(4a+3)(4a+3)+4(4a+3)\\=(4a+7)(4a+3)\)
4. \((5y+6)(y+8)+(5y+6)(2y+9)\\=(5y+6)(y+8+2y+9)\\=(5y+6)(3y+17)\)
5. \((s-8)(s+7)+(2s-4)(s-8)\\=(s-8)(s+7+2s-4)\\=(s-8)(3s+3)\)
6. \((b+6)(b+8)+(2b+8)(b+6)\\=(b+6)(b+8+2b+8)\\=(b+6)(3b+16)\)
7. \((5x+9)(x-5)-(5x+9)(4x-3)\\=(5x+9)(x-5-4x+3)\\=(5x+9)(-3x-2)\)
8. \((5a-7)^2+(20a-28)\\=(5a-7)(5a-7)+4(5a-7)\\=(5a-3)(5a-7)\)
9. \((5y-5)(y-5)-(5y-5)(2y+9)\\=(5y-5)(y-5-2y-9)\\=(5y-5)(-y-14)\)
10. \((b+2)(b-3)+(2b-6)(b+2)\\=(b+2)(b-3+2b-6)\\=(b+2)(3b-9)\)
11. \((8p+1)^2+(24p+3)\\=(8p+1)(8p+1)+3(8p+1)\\=(8p+4)(8p+1)\)
12. \((p-6)(p+8)+(2p-1)(p-6)\\=(p-6)(p+8+2p-1)\\=(p-6)(3p+7)\)