Question

Rezolvati in R ecuatia $3^{ x^{2} -1}=3$

Answer 1

${3}^{ {x}^{2} - 1 } = 3$

${3}^{ {x}^{2} - 1} = {3}^{1}$

${x}^{2} - 1 = 1$

${x}^{2} = 1 + 1$

${x}^{2} = 2$

$x = \pm \sqrt{2}$