Lettervormen distributiviteit

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Bereken

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

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Bereken

Verbetersleutel

1. \(2(2p+3q-1)=4p+6q-2\)
2. \(+(2p-3q-3)=2p-3q-3\)
3. \(-2(a+3b+4)=-2a-6b-8\)
4. \(+(-3p+4q+2)=-3p+4q+2\)
5. \(-3(8y+1)=-24y-3\)
6. \(-(a-b-3)=-a+b+3\)
7. \(+(-2a-4b+4)=-2a-4b+4\)
8. \(2(a-2b-3)=2a-4b-6\)
9. \(-(3a-2b+4)=-3a+2b-4\)
10. \(2(5b-1)=10b-2\)
11. \(-2(2q+1)=-4q-2\)
12. \(-2(-2p-4q+1)=4p+8q-2\)