Lettervormen distributiviteit

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Bereken

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

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Bereken

Verbetersleutel

1. \(-2(2xy-3y+4)=-4xy+6y-8\)
2. \(-(3q+1)=-3q-1\)
3. \(2(y+1)=2y+2\)
4. \(2(8p-2)=16p-4\)
5. \(2(2xy+4y+4)=4xy+8y+8\)
6. \(-(-4a-2)=4a+2\)
7. \(-3(b-2)=-3b+6\)
8. \(2(3xy-y+4)=6xy-2y+8\)
9. \(4(-a-1)=-4a-4\)
10. \(-(2p-2q-3)=-2p+2q+3\)
11. \(-(3x+4xy-1)=-3x-4xy+1\)
12. \(4(5x+2)=20x+8\)