Question

TYLKO DLA MADRYCH;)DAJE NAJ NAJ;)HHEELLPP POTRZEBNE NA JUTRO;(((

Przeksztalc iloczyny na sumy:

a)½(3a-2)

b)⅔(1,5+3x)

c)k(3l+2m)

d)-p(r-5s)

WYKONAJ DZIALANIA:

a)6(x-4)-2

b)2(x+1)-3(x-1)

c)-3(y-2)+4(Y+2)

d)5(x--y-1)-4(x+2)

e)2(3a+b)-2(a-b)

f)½(4x-4)-2x

g)x(x-10-3(x²-x)

h)5a(a-3)-3a(a-5)

i)3x(x+⅓y)-2y(½x-½)

Answer 1

a)½(3a-2) = 3/2a-1 = 3/2+(-1)

b)⅔(1,5+3x) = 1+2x

c)k(3l+2m) = 3kl+2km

d)-p(r-5s) = -pr+5ps

 

WYKONAJ DZIALANIA:

a)6(x-4)-2 = 6x-24-2 = 6x-26

b)2(x+1)-3(x-1) =2x+2-3x+3 = -x+5

c)-3(y-2)+4(Y+2) = -3y+6+4y+8 = y+14

d)5(x--y-1)-4(x+2) = 5x-5y-5-4x-8 = x-5y-13

e)2(3a+b)-2(a-b) = 6a+2b-2a+2b =4a+4b

f)½(4x-4)-2x = 2x-2/4-2x = -2/4 = -1/2

g)x(x-10)-3(x²-x) = x²-10x-3x²+3x = -2x²-7x

h)5a(a-3)-3a(a-5) = 5a²-15a-3a²+15a = 2a²

i)3x(x+⅓y)-2y(½x-½) = 3x²+xy-xy+y = 3x²+y

Answer 2

a)½(3a-2)=1,5a - 1

b)⅔(1,5+3x)=1+2x

c)k(3l+2m)=3kl+2km

d)-p(r-5s)=pr+5ps

 

 

 

a)6(x-4)-2=6x-24-2=64-22

b)2(x+1)-3(x-1)=2x+2+3x+3=5x+6

c)-3(y-2)+4(y+c)=3y+6+4y+4c=4c+7y+6

d)5(x-y-1)-4(x+2)=5x-5y-5+4x-8=x-5y-13

e)2(3a+b)-2(a-b)=6a+2b+2a+2b=8a+4b

f)½(4x-4)-2x=2x-2-2x=2

g)x(x-10)-3(x²-x)=x²-10x+3x²+3x=-2x²+13x

h)5a(a-3)-3a(a-5)=5a²-15a+3a²-15a=30a-8a²

i)3x(x+⅓y)-2y(½x-½)=3x²+xy+xy+y=3x²+2xy+y