Question

1 Peraluate in multimea numerelor reale,
3p a) x²=81; b) x²=75
C) (x - 5)² =64
austule​

Answer 1

Răspuns:

$a. \: \: { \times }^{2} = 81 \\ \times = \sqrt{81} \\ \times = 9$

$b. \: \: { \times }^{2} = 75 \\ \times = \sqrt{75} \\ \times = 5 \sqrt{3}$