Tweeterm als gem. factor (3)

Hoofdmenu Eentje per keer  🖨

Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

1. \((s+8)(s-3)+(4s+3)(s+8)\)
2. \((8x-5)^2-(32x-20)\)
3. \((4y+1)^2+(16y+4)\)
4. \((7b+1)^2-(28b+4)\)
5. \((5a-4)(a-7)-(5a-4)(4a-4)\)
6. \((6a-4)(a-2)+(6a-4)(5a-7)\)
7. \((8y-3)(y+8)+(8y-3)(3y+3)\)
8. \((6a-5)^2-(18a-15)\)
9. \((7b-1)(b-9)-(7b-1)(3b-5)\)
10. \((7q-6)^2+(35q-30)\)
11. \((q-9)(q-6)+(3q-3)(q-9)\)
12. \((p+3)(p+5)+(3p+5)(p+3)\)

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Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

Verbetersleutel

1. \((s+8)(s-3)+(4s+3)(s+8)\\=(s+8)(s-3+4s+3)\\=(s+8)(5s+0)\)
2. \((8x-5)^2-(32x-20)\\=(8x-5)(8x-5)-4(8x-5)\\=(8x-9)(8x-5)\)
3. \((4y+1)^2+(16y+4)\\=(4y+1)(4y+1)+4(4y+1)\\=(4y+5)(4y+1)\)
4. \((7b+1)^2-(28b+4)\\=(7b+1)(7b+1)-4(7b+1)\\=(7b-3)(7b+1)\)
5. \((5a-4)(a-7)-(5a-4)(4a-4)\\=(5a-4)(a-7-4a+4)\\=(5a-4)(-3a-3)\)
6. \((6a-4)(a-2)+(6a-4)(5a-7)\\=(6a-4)(a-2+5a-7)\\=(6a-4)(6a-9)\)
7. \((8y-3)(y+8)+(8y-3)(3y+3)\\=(8y-3)(y+8+3y+3)\\=(8y-3)(4y+11)\)
8. \((6a-5)^2-(18a-15)\\=(6a-5)(6a-5)-3(6a-5)\\=(6a-8)(6a-5)\)
9. \((7b-1)(b-9)-(7b-1)(3b-5)\\=(7b-1)(b-9-3b+5)\\=(7b-1)(-2b-4)\)
10. \((7q-6)^2+(35q-30)\\=(7q-6)(7q-6)+5(7q-6)\\=(7q-1)(7q-6)\)
11. \((q-9)(q-6)+(3q-3)(q-9)\\=(q-9)(q-6+3q-3)\\=(q-9)(4q-9)\)
12. \((p+3)(p+5)+(3p+5)(p+3)\\=(p+3)(p+5+3p+5)\\=(p+3)(4p+10)\)