Lettervormen distributiviteit

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Bereken

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

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Bereken

Verbetersleutel

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