Jawabanmu

2014-08-24T20:42:56+07:00
2(4x-6y)
=(2.4x)-(2.(-6y))
= 8x-(-12y)
= 8x+12y
2014-08-24T21:17:42+07:00
1/2( 4x - 6y )
= 1/2 dikali 4x
= 2x
1/2 dikali -6y
= -3y
jadi hasilnya , 2x - 3y