Lettervormen distributiviteit

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Bereken

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

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Bereken

Verbetersleutel

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