Lettervormen distributiviteit

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Bereken

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

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Bereken

Verbetersleutel

1. \(3(-7b+1)=-21b+3\)
2. \(+(-2x-4y+3)=-2x-4y+3\)
3. \(2(3xy-2y+1)=6xy-4y+2\)
4. \(+(-q-2)=-q-2\)
5. \(-2(-4a+1)=8a-2\)
6. \(2(-3y-2)=-6y-4\)
7. \(-(2x-3y+3)=-2x+3y-3\)
8. \(+(-2x+y-2)=-2x+y-2\)
9. \(4(7b+1)=28b+4\)
10. \(-3(6q-2)=-18q+6\)
11. \(+(3xy+3y+2)=3xy+3y+2\)
12. \(-2(-a+b+4)=2a-2b-8\)