Odpowiedzi

2010-01-29T19:20:42+01:00
2010-01-29T19:21:26+01:00
A) 3ax + ( 2ax - 5 ) =3ax+2ax-5=5ax-5
b) -4x + ( -2x + 3y - 3 )=-4x-2x+3y-3=-6x+3y-3
c) (x - 2y) + ( 5x - 7y )=x-2y+5x-7y=6x+3y
d) ( 2a +3b ) + ( -3a + 4b ) + ( a - 2b )=2a+3b-3a+4b+a-2b=5b
1 4 1
2010-01-29T19:23:43+01:00
A)-5 + 5ax
b)-3+(-6x)+3y
c)6x+(-9y)
d)a+5b

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