Lettervormen distributiviteit

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Bereken

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

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Bereken

Verbetersleutel

1. \(-(xy+y-4)=-xy-y+4\)
2. \(-2(x+3xy-4)=-2x-6xy+8\)
3. \(3(5c+1)=15c+3\)
4. \(3(y-2)=3y-6\)
5. \(-(a-4b-4)=-a+4b+4\)
6. \(4(-2a-1)=-8a-4\)
7. \(-(a-2b+2)=-a+2b-2\)
8. \(-2(xy+2y-3)=-2xy-4y+6\)
9. \(-(-5p+1)=5p-1\)
10. \(-(7y+1)=-7y-1\)
11. \(-4(8c+2)=-32c-8\)
12. \(-(8b+1)=-8b-1\)