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-6x^+8x-4x+1/6x^
-6x^+4x+1/6x^
jawabannya A.
7. itu difaktorin dlu yg depannya tar dicoret.
--------------- × -----------
x² + 6x + 9. 4x - 4
= (x + 3)(x-1). 5x²
---------------- x -------
(x + 3)(x + 3). 4(x-1)
= 5x²
--------
4(x+3)
= 5x²
---------
4x + 12