Question

Pomnóż sumy przez jednomian:

a) 2x(x-4x²+3)

b) -0,5pq(2p²-q³+5)

c) -4y²(5,6-7y+9y²)

d) (-2¹₆a-1¹₆b+¹₆)×(-6ab)

e) (8mp+4,5m-3)×0,1p

f) (3,5p-1³₄r+1,25)×(-2p²r³)

Answer 1

a) 2x(x-4x²+3)=2x²-8x³+6x

 

b) -0,5pq(2p²-q³+5)=-p³q+0,5pq⁴-2,5pq

 

c) -4y²(5,6-7y+9y²)=-22,4y²+28y³-36y⁴

 

d) (-2¹₆a-1¹₆b+¹₆)×(-6ab)=13a²b+7ab²-ab

 

e) (8mp+4,5m-3)×0,1p=0,8mp²+0,45m²p-0,3p

 

f) (3,5p-1³₄r+1,25)×(-2p²r³)=-7p³r³+3,5p²r⁴-3p²r³