Bereken
- \(2(-x+4y+2)\)
- \(3(7y-1)\)
- \(+(2x-y-4)\)
- \(-2(4x-2)\)
- \(-(-x-y-3)\)
- \(2(6c+2)\)
- \(-4(-7x+1)\)
- \(2(-2x-2xy-2)\)
- \(+(xy-4y+4)\)
- \(-2(-a-4b-1)\)
- \(-(q-1)\)
- \(-2(2y+1)\)
Bereken
Verbetersleutel
- \(2(-x+4y+2)=-2x+8y+4\)
- \(3(7y-1)=21y-3\)
- \(+(2x-y-4)=2x-y-4\)
- \(-2(4x-2)=-8x+4\)
- \(-(-x-y-3)=x+y+3\)
- \(2(6c+2)=12c+4\)
- \(-4(-7x+1)=28x-4\)
- \(2(-2x-2xy-2)=-4x-4xy-4\)
- \(+(xy-4y+4)=xy-4y+4\)
- \(-2(-a-4b-1)=2a+8b+2\)
- \(-(q-1)=-q+1\)
- \(-2(2y+1)=-4y-2\)