1.

(n) (2x+1)?+(x+1)-6x+47

Answer»

(2x+1)(2x+1) + (x+1)(x+1) = 6x+47 4x*x+4x+1+x*x+2x+1 = 6x+47 5x*x = 45 x*x = 9 x = -3,3

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