Lettervormen distributiviteit

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Bereken

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

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Bereken

Verbetersleutel

1. \(4(4a-2)=16a-8\)
2. \(-3(4y+2)=-12y-6\)
3. \(2(2xy+2y-4)=4xy+4y-8\)
4. \(3(8a-2)=24a-6\)
5. \(-2(-6a-1)=12a+2\)
6. \(-2(a+2b+3)=-2a-4b-6\)
7. \(3(-7x+1)=-21x+3\)
8. \(-(-3x+3xy-1)=3x-3xy+1\)
9. \(-2(x-y-1)=-2x+2y+2\)
10. \(-3(-4c-1)=12c+3\)
11. \(-4(-2c+1)=8c-4\)
12. \(2(-2q+2)=-4q+4\)