Jawabanmu

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2014-09-11T17:48:38+07:00
6(2+3x) = 12 + 18x
2(2x^2-4x+6)= 4x^2-8x+12

dijumlahkan
= 4x^2 + ( -8x + 18x ) + ( 12 + 12 ) = 4x^2 + 10x + 24