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= 2x ( x + 2 ) + 6 ( x + 2 )
= ( x + 2 ) ( 2x + 6 )
= 2x² +6x +4x +12
= (2x² +6x) +(4x +12)
= 2x(x +3) +4(x +3)
= (2x +4) (x +3)
Itu jawabannya.