Tweeterm als gem. factor (3)

Hoofdmenu Eentje per keer  🖨

Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

1. \((8y+1)^2-(40y+5)\)
2. \((7x+9)(x-4)-(7x+9)(4x-7)\)
3. \((8y+7)^2+(16y+14)\)
4. \((p-9)(p+6)-(2p+4)(p-9)\)
5. \((x+7)(x+3)-(5x-8)(x+7)\)
6. \((p+4)(p-4)-(2p+1)(p+4)\)
7. \((8s+4)(s+7)-(8s+4)(5s-7)\)
8. \((2q+1)^2+(8q+4)\)
9. \((7p+3)(p-9)-(7p+3)(5p+8)\)
10. \((4x+2)(x-2)+(4x+2)(3x+1)\)
11. \((y-7)(y+2)-(5y-7)(y-7)\)
12. \((9s+5)^2+(45s+25)\)

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Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

Verbetersleutel

1. \((8y+1)^2-(40y+5)\\=(8y+1)(8y+1)-5(8y+1)\\=(8y-4)(8y+1)\)
2. \((7x+9)(x-4)-(7x+9)(4x-7)\\=(7x+9)(x-4-4x+7)\\=(7x+9)(-3x+3)\)
3. \((8y+7)^2+(16y+14)\\=(8y+7)(8y+7)+2(8y+7)\\=(8y+9)(8y+7)\)
4. \((p-9)(p+6)-(2p+4)(p-9)\\=(p-9)(p+6-2p-4)\\=(p-9)(-p+2)\)
5. \((x+7)(x+3)-(5x-8)(x+7)\\=(x+7)(x+3-5x+8)\\=(x+7)(-4x+11)\)
6. \((p+4)(p-4)-(2p+1)(p+4)\\=(p+4)(p-4-2p-1)\\=(p+4)(-p-5)\)
7. \((8s+4)(s+7)-(8s+4)(5s-7)\\=(8s+4)(s+7-5s+7)\\=(8s+4)(-4s+14)\)
8. \((2q+1)^2+(8q+4)\\=(2q+1)(2q+1)+4(2q+1)\\=(2q+5)(2q+1)\)
9. \((7p+3)(p-9)-(7p+3)(5p+8)\\=(7p+3)(p-9-5p-8)\\=(7p+3)(-4p-17)\)
10. \((4x+2)(x-2)+(4x+2)(3x+1)\\=(4x+2)(x-2+3x+1)\\=(4x+2)(4x-1)\)
11. \((y-7)(y+2)-(5y-7)(y-7)\\=(y-7)(y+2-5y+7)\\=(y-7)(-4y+9)\)
12. \((9s+5)^2+(45s+25)\\=(9s+5)(9s+5)+5(9s+5)\\=(9s+10)(9s+5)\)