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Dupa reducerea termenilor asemenea (3×+1)(2×-1) este egal cu...

Răspuns :

(3x+1)(2x-1) = 6x²-3x+2x-1 ==> 6x²-x-1=0 
(3x+1)(2x-1) = 6x²+2x-3x-1 = 6x² - x - 1