Lettervormen distributiviteit

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Bereken

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

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Bereken

Verbetersleutel

1. \(-3(3y+2)=-9y-6\)
2. \(-2(2xy+y+2)=-4xy-2y-4\)
3. \(-(x+3y-4)=-x-3y+4\)
4. \(-(-3x-2xy+1)=3x+2xy-1\)
5. \(2(-8a+1)=-16a+2\)
6. \(-2(-4q-2)=8q+4\)
7. \(4(-7p+2)=-28p+8\)
8. \(2(-3x-3xy-4)=-6x-6xy-8\)
9. \(2(4q+1)=8q+2\)
10. \(2(2x+y-1)=4x+2y-2\)
11. \(-(2x+2xy+4)=-2x-2xy-4\)
12. \(+(-2x-3y+3)=-2x-3y+3\)