Lettervormen distributiviteit

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Bereken

1. \(2(-2x-2y-2)\)
2. \(-(4y+2)\)
3. \(+(4a-1)\)
4. \(-2(-xy+y+4)\)
5. \(2(2a+4b-4)\)
6. \(-2(6x-2)\)
7. \(-2(-2x-4xy-2)\)
8. \(-2(-7q-1)\)
9. \(2(-2xy+y-1)\)
10. \(3(5p+1)\)
11. \(-(-xy+2y-4)\)
12. \(-3(7a-1)\)

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Bereken

Verbetersleutel

1. \(2(-2x-2y-2)=-4x-4y-4\)
2. \(-(4y+2)=-4y-2\)
3. \(+(4a-1)=4a-1\)
4. \(-2(-xy+y+4)=2xy-2y-8\)
5. \(2(2a+4b-4)=4a+8b-8\)
6. \(-2(6x-2)=-12x+4\)
7. \(-2(-2x-4xy-2)=4x+8xy+4\)
8. \(-2(-7q-1)=14q+2\)
9. \(2(-2xy+y-1)=-4xy+2y-2\)
10. \(3(5p+1)=15p+3\)
11. \(-(-xy+2y-4)=xy-2y+4\)
12. \(-3(7a-1)=-21a+3\)