Tweeterm als gem. factor (3)

Hoofdmenu Eentje per keer  🖨

Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

1. \((s+3)^2-(2s+6)\)
2. \((5y-4)(y-1)+(5y-4)(2y+7)\)
3. \((8p+8)(p+5)+(8p+8)(3p+7)\)
4. \((a-4)(a+5)+(5a-4)(a-4)\)
5. \((a-2)(a-8)-(5a+6)(a-2)\)
6. \((4a-7)^2+(8a-14)\)
7. \((7p-1)(p-7)+(7p-1)(5p-3)\)
8. \((7p-3)^2+(14p-6)\)
9. \((x-1)(x-7)-(3x-1)(x-1)\)
10. \((7a+1)^2-(28a+4)\)
11. \((8x-7)^2-(24x-21)\)
12. \((4p-2)(p+8)+(4p-2)(3p-4)\)

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Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

Verbetersleutel

1. \((s+3)^2-(2s+6)\\=(s+3)(s+3)-2(s+3)\\=(s+1)(s+3)\)
2. \((5y-4)(y-1)+(5y-4)(2y+7)\\=(5y-4)(y-1+2y+7)\\=(5y-4)(3y+6)\)
3. \((8p+8)(p+5)+(8p+8)(3p+7)\\=(8p+8)(p+5+3p+7)\\=(8p+8)(4p+12)\)
4. \((a-4)(a+5)+(5a-4)(a-4)\\=(a-4)(a+5+5a-4)\\=(a-4)(6a+1)\)
5. \((a-2)(a-8)-(5a+6)(a-2)\\=(a-2)(a-8-5a-6)\\=(a-2)(-4a-14)\)
6. \((4a-7)^2+(8a-14)\\=(4a-7)(4a-7)+2(4a-7)\\=(4a-5)(4a-7)\)
7. \((7p-1)(p-7)+(7p-1)(5p-3)\\=(7p-1)(p-7+5p-3)\\=(7p-1)(6p-10)\)
8. \((7p-3)^2+(14p-6)\\=(7p-3)(7p-3)+2(7p-3)\\=(7p-1)(7p-3)\)
9. \((x-1)(x-7)-(3x-1)(x-1)\\=(x-1)(x-7-3x+1)\\=(x-1)(-2x-6)\)
10. \((7a+1)^2-(28a+4)\\=(7a+1)(7a+1)-4(7a+1)\\=(7a-3)(7a+1)\)
11. \((8x-7)^2-(24x-21)\\=(8x-7)(8x-7)-3(8x-7)\\=(8x-10)(8x-7)\)
12. \((4p-2)(p+8)+(4p-2)(3p-4)\\=(4p-2)(p+8+3p-4)\\=(4p-2)(4p+4)\)