Lettervormen distributiviteit

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Bereken

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

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Bereken

Verbetersleutel

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