1.

(2x+1)+ (x+1) 6x+47

Answer»

(2x + 1)^2 + (x + 1)^2 = 6x + 472x^2 + 1 + 4x + x^2 + 1 + 2x = 6x + 473x^2 +2 + 6x = 6x + 473x^2 = 47 - 23x^2 = 45x^2 = 45/3 = 15x = sqroot (15) ans



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