Tweeterm als gem. factor (3)

Hoofdmenu Eentje per keer  🖨

Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

1. \((7a+9)(a-4)+(7a+9)(2a-9)\)
2. \((p+2)(p+4)+(3p-3)(p+2)\)
3. \((4s+5)^2+(8s+10)\)
4. \((3a+5)(a-2)+(3a+5)(2a+2)\)
5. \((2x+5)^2+(10x+25)\)
6. \((8a+1)^2-(24a+3)\)
7. \((q-1)(q-7)-(3q+1)(q-1)\)
8. \((x+1)(x+9)+(5x-1)(x+1)\)
9. \((2q-3)(q-1)-(2q-3)(3q-2)\)
10. \((5q-4)^2+(20q-16)\)
11. \((9s+5)^2+(27s+15)\)
12. \((3q-6)(q-9)-(3q-6)(2q+7)\)

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Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

Verbetersleutel

1. \((7a+9)(a-4)+(7a+9)(2a-9)\\=(7a+9)(a-4+2a-9)\\=(7a+9)(3a-13)\)
2. \((p+2)(p+4)+(3p-3)(p+2)\\=(p+2)(p+4+3p-3)\\=(p+2)(4p+1)\)
3. \((4s+5)^2+(8s+10)\\=(4s+5)(4s+5)+2(4s+5)\\=(4s+7)(4s+5)\)
4. \((3a+5)(a-2)+(3a+5)(2a+2)\\=(3a+5)(a-2+2a+2)\\=(3a+5)(3a+0)\)
5. \((2x+5)^2+(10x+25)\\=(2x+5)(2x+5)+5(2x+5)\\=(2x+10)(2x+5)\)
6. \((8a+1)^2-(24a+3)\\=(8a+1)(8a+1)-3(8a+1)\\=(8a-2)(8a+1)\)
7. \((q-1)(q-7)-(3q+1)(q-1)\\=(q-1)(q-7-3q-1)\\=(q-1)(-2q-8)\)
8. \((x+1)(x+9)+(5x-1)(x+1)\\=(x+1)(x+9+5x-1)\\=(x+1)(6x+8)\)
9. \((2q-3)(q-1)-(2q-3)(3q-2)\\=(2q-3)(q-1-3q+2)\\=(2q-3)(-2q+1)\)
10. \((5q-4)^2+(20q-16)\\=(5q-4)(5q-4)+4(5q-4)\\=(5q+0)(5q-4)\)
11. \((9s+5)^2+(27s+15)\\=(9s+5)(9s+5)+3(9s+5)\\=(9s+8)(9s+5)\)
12. \((3q-6)(q-9)-(3q-6)(2q+7)\\=(3q-6)(q-9-2q-7)\\=(3q-6)(-q-16)\)