Lettervormen distributiviteit

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Bereken

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

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Bereken

Verbetersleutel

1. \(-3(b-1)=-3b+3\)
2. \(3(-3a-2)=-9a-6\)
3. \(+(2x-1)=2x-1\)
4. \(2(2xy+y-3)=4xy+2y-6\)
5. \(-3(8y+1)=-24y-3\)
6. \(+(-3x+3y-1)=-3x+3y-1\)
7. \(3(6a-2)=18a-6\)
8. \(3(x+2)=3x+6\)
9. \(2(-7c+2)=-14c+4\)
10. \(2(-x+2xy-3)=-2x+4xy-6\)
11. \(+(-x+4y-2)=-x+4y-2\)
12. \(-(-8x-2)=8x+2\)