Lettervormen distributiviteit

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Bereken

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

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Bereken

Verbetersleutel

1. \(-4(-7a+1)=28a-4\)
2. \(+(-6q+1)=-6q+1\)
3. \(2(-c+2)=-2c+4\)
4. \(+(-xy+4y-4)=-xy+4y-4\)
5. \(-2(-x+4y+2)=2x-8y-4\)
6. \(-2(2p-4q+4)=-4p+8q-8\)
7. \(2(-7c-2)=-14c-4\)
8. \(2(a+3b-4)=2a+6b-8\)
9. \(3(2x-2)=6x-6\)
10. \(-3(4q-2)=-12q+6\)
11. \(4(8q-2)=32q-8\)
12. \(+(-a-2b-1)=-a-2b-1\)