zad 1 uzupelnij grafy :
2x*1/2 =...
5x*...=15x
-5y*1/5=...
3/8w*(-3/8)=...
2/3u*...=u
1/7u*7=...
ZAD 2
wykonaj mnozenie :
2(x+3)=...
5(3x-1)=..
(-4)*(2a-b)=...
-2(-4b+3)=...
(a+b)*(-4)=...
(4-5x+6y)*3=...
-3(3x-2)=...
-1(3x-y+2) =...
PODAWAJCIE SAME WYNIKI :)
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zad.1
a) x
b) 3
c) -1y
d) -9/16
f) 1
zad.2.
a) 2x+6
b) 15x -5
c) -8a + 4b
d) -4a -4b
e) 12-15x+18y
f) -9x+6
g)-3x+y-2
zad1
2x * 1/2 = x
5x * 3 = 15x
-5y * 1/5 = -y
3/8w * (-3/8) =-w
2/3u * 3/2= u
1/7u * 7 = u
zad2
2(x+3) = 2x + 6
5(3x +1)= 15x +5
(-4)*(2a-b)= -8a + 4b
-2(-4b+3)= 8b - 6
(a+b)* (-4)= -4a -4b
(4-5x+6y)*3= 12 - 15x +18y
-3(3x-2)= -9x +6
-1(2x-y+2)= -2x + y -2
napisałam całość żeby było wiadomo co do czego ;p