Lettervormen distributiviteit

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Bereken

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

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Bereken

Verbetersleutel

1. \(+(-2b+1)=-2b+1\)
2. \(-(-2xy-4y+1)=2xy+4y-1\)
3. \(-2(-p+4q-1)=2p-8q+2\)
4. \(3(-4x+2)=-12x+6\)
5. \(-(-2x+4xy-2)=2x-4xy+2\)
6. \(-3(-6x+2)=18x-6\)
7. \(2(2xy-y-4)=4xy-2y-8\)
8. \(4(y+2)=4y+8\)
9. \(-(-2a+3b-1)=2a-3b+1\)
10. \(2(-3q+2)=-6q+4\)
11. \(2(4y+2)=8y+4\)
12. \(2(3x+3y-1)=6x+6y-2\)