Question

c)[-0,8(3)]la 2 algebră​

Answer 1

Explicație:

✅- la putere para devine plus ✅

$= (- 0.8(3) ){}^{2} = 0.8(3) {}^{2} = \\ \\ =( \frac{83 - 8}{90}) {}^{2} = (\frac{75}{90}) {}^{2} = \\ \\ simplificam \: prin \: 5 \\ \\ = (\frac{15}{18} ) {}^{2} = \\ \\ simplificam \: prin \: 3 \: \\ \\ =( \frac{5}{6}) {}^{2} = \\ \\ = \boxed{ \frac{25}{36} }$