Lettervormen distributiviteit

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Bereken

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

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Bereken

Verbetersleutel

1. \(-(xy+y-2)=-xy-y+2\)
2. \(-4(-8y-2)=32y+8\)
3. \(2(-6q-2)=-12q-4\)
4. \(2(-7y+2)=-14y+4\)
5. \(+(a-4b-2)=a-4b-2\)
6. \(+(5b-2)=5b-2\)
7. \(-(-3a-4b-4)=3a+4b+4\)
8. \(-(-x-3y-1)=x+3y+1\)
9. \(+(-5c+1)=-5c+1\)
10. \(2(-5c+1)=-10c+2\)
11. \(-2(-b-2)=2b+4\)
12. \(+(-x+2y-1)=-x+2y-1\)