Uprość podane wyrażenie (3x-1)do kwadraty - (3x-1)(1+3x)-(3x+1)do kwadratu .oblicz jego wartosc dla x= pierwiastek z 5
9x^2 -6x+1-(9x^2-1)-9x^2-6x-1= -6x-9x^2-6x-1=-12x-9x^2+1-12 pierw 5 -45 +1= -12pierw 5-44
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9x^2 -6x+1-(9x^2-1)-9x^2-6x-1= -6x-9x^2-6x-1=-12x-9x^2+1
-12 pierw 5 -45 +1= -12pierw 5-44