Question

Daca Xminus 1pe2=3 ,calculati xla a 2 plus 1pe xla a 2 urgenttt ca am testttt ca roggggg!!!!

Answer 1

x - $\frac{1}{2}$ = 3
$x^{2}$ + $\frac{1}{x ^{2} }$ = ?

x - $\frac{1}{2}$ = 3 => x = $\frac{3}{1} + \frac{1}{2}$ => $\frac{3}{1}$ se amplifica cu 2 => x = $\frac{6 + 1}{2}$ => x = $\frac{7}{2}$ = 3,5

$x^{2}$ + $\frac{1}{x ^{2} }$ = 
= $3,5^{2}$ + $\frac{1}{3,5 ^{2} }$ =
= $\frac{12,25}{1} + \frac{1}{12,25}$ =
= $\frac{150,0625 + 1}{12,25}$, pentru ca am aplificat cu 12,25 =>
=> $\frac{151,0625}{12,25}$ este rezultatul.