Question

stiti sa faceti asa ceva?​

Answer 1

$x - \frac{864}{x} = 12 \sqrt{3}$

$x - \frac{864}{x} - 12 \sqrt{3} = 0$

$\frac{ {x}^{2} - 864 - 12 \sqrt{3} x }{x} = 0$

${x}^{2} - 864 - 12 \sqrt{3} x = 0$

${x}^{2} - 12 \sqrt{3} - 864 = 0$

$x = \frac{ - ( - 12) \times \sqrt{3} + \sqrt{ {( - 12 \sqrt{3)} }^{2} - 4 \times 1 \times ( - 864) } }{2 \times 1}$

$x = \frac{12 \sqrt{3} + \sqrt{144 \times 3 + 3456} }{2}$

$x = \frac{12 \sqrt{3} + \sqrt{3888} }{2}$

$x = \frac{12 \sqrt{3} + 36 \sqrt{3} }{2}$

$x = \frac{12 \sqrt{3} - 36 \sqrt{3} }{2}$

$x = 24 \sqrt{3} \\ x = - 12 \sqrt{3}$