Question

am nevoie de răspuns cat mai repede
39+5•{2+3•[2+4•(2353-84•28)]}-7²​

Answer 1

Răspuns:

39+5•{2+3•[2+4•(2353-84•28)]}-7²​=

39+5·{2+3·[2+4·(2353-2352)]}-49=

39+5·[2+3·(2+4·1)]-49=

39+5·(2+3·6)-49=

39+5·(2+18)-49=

39+5·20-49=

39+100-49=

90

Answer 2

Explicație pas cu pas:

$39+5 \cdot \{2+3\cdot[2+4\cdot(2353-84\cdot28)] \}-7^2=$

$39+5 \cdot \{2+3\cdot[2+4\cdot(2353-2352)] \}-49=$

$39+5 \cdot[2+3\cdot(2+4\cdot \: 1)]-49=$

$39+5 \cdot[2+3\cdot(2+4)]-49=$

$39+5 \cdot(2+3\cdot6)-49=$

$39+5 \cdot(2+18)-49=$

$39+5 \cdot20-49=$

$39+100-49=$

$139 - 49=$

$\red{ \underline{ \: 90 \: }}$