Question

efectuati 1.2la puterea a doua+2.1 la puterea adoua-0.0017*1000

Answer 1

${(1.2})^{2} + {(2.1)}^{2} - 0.0017 \times 1000$

$= {( \frac{12}{10} )}^{2} + {( \frac{21}{10} )}^{2} - 1.7$

$= \frac{ {12}^{2} }{ {10}^{2} } + \frac{ {21}^{2} }{ {10}^{2} } - \frac{17}{10}$

$= \frac{144}{100} + \frac{441}{100} - \frac{17}{10}$

$= \frac{144}{100} + \frac{441}{100} - \frac{170}{100}$

$= \frac{144 + 441 + 170}{100}$

$= \frac{755}{100}$

$= \frac{151}{20}$

Answer 2

1,44+4,41=5,85
0,0017×1000=1,7