Question

ajutor dau două coroane a b c repede da

Answer 1

$a) {5}^{25} \times 3 + 9 \times {5}^{25} - 5 \times {5}^{25} - 7 \times {5}^{25}$

$= {5}^{25} (3 + 9 - 5 - 7)$

$= {5}^{25} (12 - 5 - 7)$

$= {5}^{25} (7 - 7)$

$= {5}^{25} \times 0$

$= 0$

$b) {7}^{40} \times 8+ {7}^{40} - 9 \times {7}^{40}$

$= {7}^{40} (8 + 1 - 9)$

$= {7}^{40} (9 - 9)$

$= {7}^{40} \times 0$

$= 0$

$c) {2}^{3} + {3}^{3} \times {2}^{3} - {12}^{2} \div {4}^{2}$

$= {2}^{3} + {(3 \times 2)}^{3} - {(12 \div 4)}^{2}$

$= 8 + {6}^{3} - {3}^{2}$

$= 8 + 216 - 9$

$= 224 - 9$

$= 215$