Lettervormen distributiviteit

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Bereken

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

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Bereken

Verbetersleutel

1. \(2(-7a+2)=-14a+4\)
2. \(2(-x-2xy-2)=-2x-4xy-4\)
3. \(4(7p-2)=28p-8\)
4. \(+(-2y+2)=-2y+2\)
5. \(-(-2c-2)=2c+2\)
6. \(+(-x-1)=-x-1\)
7. \(3(5c+2)=15c+6\)
8. \(-(3x-2xy-1)=-3x+2xy+1\)
9. \(+(-3p-4q-2)=-3p-4q-2\)
10. \(+(2x+xy-4)=2x+xy-4\)
11. \(2(p-3q-3)=2p-6q-6\)
12. \(+(3x-2y-3)=3x-2y-3\)