Lettervormen distributiviteit

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Bereken

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

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Bereken

Verbetersleutel

1. \(+(-a-b+4)=-a-b+4\)
2. \(2(-2a-b-1)=-4a-2b-2\)
3. \(-(x+4y+3)=-x-4y-3\)
4. \(-3(-4a+1)=12a-3\)
5. \(-(y-2)=-y+2\)
6. \(-(-3xy-2y+2)=3xy+2y-2\)
7. \(+(3xy-3y+4)=3xy-3y+4\)
8. \(4(-7y+2)=-28y+8\)
9. \(-4(-5x-1)=20x+4\)
10. \(2(6y-1)=12y-2\)
11. \(+(2p-4q-2)=2p-4q-2\)
12. \(4(5x+2)=20x+8\)