Lettervormen distributiviteit

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Bereken

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

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Bereken

Verbetersleutel

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