Lettervormen distributiviteit

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Bereken

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

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Bereken

Verbetersleutel

1. \(-4(a-2)=-4a+8\)
2. \(-2(-3x+2xy+3)=6x-4xy-6\)
3. \(+(5b+2)=5b+2\)
4. \(2(2b-2)=4b-4\)
5. \(4(-6a-1)=-24a-4\)
6. \(-2(x+4xy+2)=-2x-8xy-4\)
7. \(+(-a+3b-2)=-a+3b-2\)
8. \(2(7c+2)=14c+4\)
9. \(+(x+y+3)=x+y+3\)
10. \(-4(8a+2)=-32a-8\)
11. \(-(-2xy+3y+2)=2xy-3y-2\)
12. \(-4(2q-2)=-8q+8\)