Lettervormen distributiviteit

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Bereken

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

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Bereken

Verbetersleutel

1. \(-(-3a-3b+4)=3a+3b-4\)
2. \(-2(-x+xy-3)=2x-2xy+6\)
3. \(-2(3p+2q-4)=-6p-4q+8\)
4. \(2(-3x-3xy+2)=-6x-6xy+4\)
5. \(-2(-2x-xy+3)=4x+2xy-6\)
6. \(-(-x+4xy-2)=x-4xy+2\)
7. \(2(-4c-1)=-8c-2\)
8. \(4(5x-1)=20x-4\)
9. \(-4(8y+2)=-32y-8\)
10. \(-2(-2xy-2y+3)=4xy+4y-6\)
11. \(-2(4b+1)=-8b-2\)
12. \(2(3xy-2y-4)=6xy-4y-8\)