Lettervormen distributiviteit

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Bereken

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

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Bereken

Verbetersleutel

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