va rog eu muuultt am nevoie de ajutor urgennt
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n=(2x²-3x-2)(2x²-3x+4)+9
îl notam pe 2x²-3x cu y
n=(y-2)(y+4)+9
n=y²+4y-2y-8+9
n=(2x²-3x)²+2(2x²-3x)+1
n=[(2x²-3x)+1]²-pătrat perfect
#Kawaiimath