Tweeterm als gem. factor (3)

Hoofdmenu Eentje per keer  🖨

Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

1. \((3s+5)(s-6)-(3s+5)(5s+9)\)
2. \((9q-8)^2-(36q-32)\)
3. \((7a+1)^2+(35a+5)\)
4. \((7y+2)^2-(21y+6)\)
5. \((7y+8)^2-(14y+16)\)
6. \((s-4)(s+3)-(3s+4)(s-4)\)
7. \((8s-7)^2+(40s-35)\)
8. \((a-1)(a-2)-(2a-2)(a-1)\)
9. \((3p+3)(p+6)-(3p+3)(4p+2)\)
10. \((8q+1)^2-(16q+2)\)
11. \((q+9)(q+7)+(3q+1)(q+9)\)
12. \((x+1)(x+3)-(4x+3)(x+1)\)

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Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

Verbetersleutel

1. \((3s+5)(s-6)-(3s+5)(5s+9)\\=(3s+5)(s-6-5s-9)\\=(3s+5)(-4s-15)\)
2. \((9q-8)^2-(36q-32)\\=(9q-8)(9q-8)-4(9q-8)\\=(9q-12)(9q-8)\)
3. \((7a+1)^2+(35a+5)\\=(7a+1)(7a+1)+5(7a+1)\\=(7a+6)(7a+1)\)
4. \((7y+2)^2-(21y+6)\\=(7y+2)(7y+2)-3(7y+2)\\=(7y-1)(7y+2)\)
5. \((7y+8)^2-(14y+16)\\=(7y+8)(7y+8)-2(7y+8)\\=(7y+6)(7y+8)\)
6. \((s-4)(s+3)-(3s+4)(s-4)\\=(s-4)(s+3-3s-4)\\=(s-4)(-2s-1)\)
7. \((8s-7)^2+(40s-35)\\=(8s-7)(8s-7)+5(8s-7)\\=(8s-2)(8s-7)\)
8. \((a-1)(a-2)-(2a-2)(a-1)\\=(a-1)(a-2-2a+2)\\=(a-1)(-a+0)\)
9. \((3p+3)(p+6)-(3p+3)(4p+2)\\=(3p+3)(p+6-4p-2)\\=(3p+3)(-3p+4)\)
10. \((8q+1)^2-(16q+2)\\=(8q+1)(8q+1)-2(8q+1)\\=(8q-1)(8q+1)\)
11. \((q+9)(q+7)+(3q+1)(q+9)\\=(q+9)(q+7+3q+1)\\=(q+9)(4q+8)\)
12. \((x+1)(x+3)-(4x+3)(x+1)\\=(x+1)(x+3-4x-3)\\=(x+1)(-3x+0)\)