Odpowiedzi

2009-11-17T19:41:12+01:00
1. -3(2y-3x)+2(3y+2x)=
-6y+9x+6y+4x=
13x

2. -4(x-5y)-3(-2y-x)=
-4x+20y+6y+3x=
26y-1x
2009-11-17T19:44:54+01:00
A) -3(2y-3x)+2(3y+2x) = -6y+9x+6y+4x = 13x
b) -4(x-5y)-3(-2y-x) = -4x+20y+6y+3x = -x+26y
2009-11-17T19:47:21+01:00
A) -3(2y-3x)+2(3y+2x)=-6y+9x+6y+4x=13x
b) -4(x-5y)-3(-2y-x)=-4x+20y+6y+3x=-x+26y