Question

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Answer 1

Răspuns:

Explicație pas cu pas:

(7+4√3)=4+4√4+3)=(2+√3)²

(2+√3)^2x/(2+√3)^4=2-√3

(2+√3)^2x=(2-√3)(2+√3)(2+√3)³

(2+√3)^2x=(4-3)(2+√3)³

(2+√3)^2x=(2+√3)³      ⇒2x=3       x=3/2