Lettervormen distributiviteit

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Bereken

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

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Bereken

Verbetersleutel

1. \(-2(-3p-2)=6p+4\)
2. \(-(7x+2)=-7x-2\)
3. \(-(xy+y-2)=-xy-y+2\)
4. \(-(-2x+2y-3)=2x-2y+3\)
5. \(-3(-7y-2)=21y+6\)
6. \(+(3p+2q-2)=3p+2q-2\)
7. \(-(-b-1)=b+1\)
8. \(-(-2x+3y+4)=2x-3y-4\)
9. \(+(-2x+xy-3)=-2x+xy-3\)
10. \(-4(2a+2)=-8a-8\)
11. \(3(5b+1)=15b+3\)
12. \(+(-6x+2)=-6x+2\)