Jawabanmu

2014-07-17T17:48:10+07:00
=(2X-3)²-4(X-1)²
= 4x^2 - 12x +9 - 4 (x^2 - 2x +1)
= 4x^2 - 12x +9 -4x^2 + 8x -4
=-4x+5
2014-07-17T17:59:11+07:00
(2X-3)²-4(X-1)²
= 4x^2 - 12x +9 - 4 (x^2 - 2x +1)
= 4x^2 - 12x +9 -4x^2 + 8x -4
=-4x+5

smga brmnfaat ^^