Question

$27 {x }^{2} - (1 - \sqrt{3} x) {}^{2}$
Va rog răspundeți la acest exercitiu

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Answer 1

$27x^2-(1-\sqrt 3x)^2 =(3\sqrt 3 x)^2-(1-\sqrt 3 x)^2 = \\ \\ = \Big(3\sqrt 3 x-(1-\sqrt 3 x)\Big)(3\sqrt 3 x+1-\sqrt3 x) = \\ \\ = (4\sqrt 3 x-1)(2\sqrt3 x+1)$