Tweeterm als gem. factor (3)

Hoofdmenu Eentje per keer  🖨

Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

1. \((x-2)(x+6)+(5x+5)(x-2)\)
2. \((3p+7)^2+(15p+35)\)
3. \((s-3)(s+2)-(4s-4)(s-3)\)
4. \((4a+1)(a-4)-(4a+1)(5a-5)\)
5. \((a-6)(a-2)+(3a-6)(a-6)\)
6. \((a+4)(a+1)+(5a-2)(a+4)\)
7. \((q+3)(q-3)+(2q-5)(q+3)\)
8. \((3b-4)(b+2)-(3b-4)(5b-5)\)
9. \((8b-7)^2+(24b-21)\)
10. \((9a+7)^2+(45a+35)\)
11. \((7s-3)(s+7)-(7s-3)(4s-2)\)
12. \((b-9)(b-4)-(5b+6)(b-9)\)

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Zonder de gemeenschappelijke tweeterm af en 'kuis op'.

Verbetersleutel

1. \((x-2)(x+6)+(5x+5)(x-2)\\=(x-2)(x+6+5x+5)\\=(x-2)(6x+11)\)
2. \((3p+7)^2+(15p+35)\\=(3p+7)(3p+7)+5(3p+7)\\=(3p+12)(3p+7)\)
3. \((s-3)(s+2)-(4s-4)(s-3)\\=(s-3)(s+2-4s+4)\\=(s-3)(-3s+6)\)
4. \((4a+1)(a-4)-(4a+1)(5a-5)\\=(4a+1)(a-4-5a+5)\\=(4a+1)(-4a+1)\)
5. \((a-6)(a-2)+(3a-6)(a-6)\\=(a-6)(a-2+3a-6)\\=(a-6)(4a-8)\)
6. \((a+4)(a+1)+(5a-2)(a+4)\\=(a+4)(a+1+5a-2)\\=(a+4)(6a-1)\)
7. \((q+3)(q-3)+(2q-5)(q+3)\\=(q+3)(q-3+2q-5)\\=(q+3)(3q-8)\)
8. \((3b-4)(b+2)-(3b-4)(5b-5)\\=(3b-4)(b+2-5b+5)\\=(3b-4)(-4b+7)\)
9. \((8b-7)^2+(24b-21)\\=(8b-7)(8b-7)+3(8b-7)\\=(8b-4)(8b-7)\)
10. \((9a+7)^2+(45a+35)\\=(9a+7)(9a+7)+5(9a+7)\\=(9a+12)(9a+7)\)
11. \((7s-3)(s+7)-(7s-3)(4s-2)\\=(7s-3)(s+7-4s+2)\\=(7s-3)(-3s+9)\)
12. \((b-9)(b-4)-(5b+6)(b-9)\\=(b-9)(b-4-5b-6)\\=(b-9)(-4b-10)\)