Lettervormen distributiviteit

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Bereken

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

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Bereken

Verbetersleutel

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