Lettervormen distributiviteit

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Bereken

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

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Bereken

Verbetersleutel

1. \(-4(4y-2)=-16y+8\)
2. \(2(-b+2)=-2b+4\)
3. \(-(-6x-1)=6x+1\)
4. \(-(-2a-b-3)=2a+b+3\)
5. \(2(3a-1)=6a-2\)
6. \(3(4c-2)=12c-6\)
7. \(+(-7y+2)=-7y+2\)
8. \(-2(-a-b+2)=2a+2b-4\)
9. \(-2(-8b+2)=16b-4\)
10. \(4(c+1)=4c+4\)
11. \(+(-4p+1)=-4p+1\)
12. \(-(-xy+4y+1)=xy-4y-1\)