Question

pomocy!!!

a) .4x(-2x+y+2)=

b). 8(3a-2b)=

c). 1/2 x(4x-3)=

d). 8xy (x - 1/2)=

e).n(-8m-2n) =

f). -3y (-2y -2)=

g) 2x(-x+y)=

h). x(x[kwadrat2] -x+1)=

i). 1/2x (y-z+1)= j). abc (-2ab+3bc+ca)=

Answer 1

a) .4x(-2x+y+2)=-8x²+4xy+8x

b). 8(3a-2b)=24a-16b

c). 1/2 x(4x-3)=2x²-3/2x

d). 8xy (x - 1/2)=8x²y-4xy

e).n(-8m-2n) =-8mn-2n²

f). -3y (-2y -2)=6y²+6y

g) 2x(-x+y)=-2x²+2xy

h). x(x² -x+1)=x³-x²+x

i). 1/2x (y-z+1)=1/2xy-1/2xz+1/2x

 

j). abc (-2ab+3bc+ca)=-2a²b²c+3ab²c²+a²bc²

 

licze na naj 

Answer 2

a) .4x(-2x+y+2)= -8x(do kwadratu) + 4xy + 8x

b). 8(3a-2b)= 24a - 16b

c). 1/2 x(4x-3)= 2x(do kwadratu) - 1,5x

d). 8xy (x - 1/2)= 8x(do kwadratu)y - 4xy

e).n(-8m-2n) = -8mn - 2n(do kwadratu)

f). -3y (-2y -2)= 6y(do kwadratu) + 6y

g) 2x(-x+y)= -2x(do kwadratu) +2xy

h). x(x[kwadrat2] -x+1)= x³-x²+x

i). 1/2x (y-z+1)= j). abc (-2ab+3bc+ca)= -2a²b²c+3ab²c²+a²bc²

 

myśle, że pomogłam,  pozdrawiam :)