Lettervormen distributiviteit

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Bereken

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

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Bereken

Verbetersleutel

1. \(-2(-2xy-2y-3)=4xy+4y+6\)
2. \(+(6c+2)=6c+2\)
3. \(2(-2a+b+3)=-4a+2b+6\)
4. \(-(-4b-1)=4b+1\)
5. \(-2(-4x+2)=8x-4\)
6. \(4(7a+2)=28a+8\)
7. \(-(-3x-4y+4)=3x+4y-4\)
8. \(+(-3a+2b+4)=-3a+2b+4\)
9. \(-2(-2p+4q+4)=4p-8q-8\)
10. \(2(c-1)=2c-2\)
11. \(+(3xy-4y-4)=3xy-4y-4\)
12. \(4(-6x+2)=-24x+8\)