Question

47-[(45.2 mũ 4-5 mũ 2.12):14]

Answer 1

\(47-\left[\left(45.2^4-5^2.12\right):14\right]\)

\(=47-\left[\left(45.16-25.12\right):14\right]\)

\(=47-\left[\left(720-300\right):14\right]\)

\(=47-\left[420:14\right]\)

\(=47-30\)

\(=17\)

Answer 2

\(47-\left[\left(45.2^4-5^2.12\right):14\right]\) 

\(=47-\left[\left(45.16-25.12\right):14\right]\) 

\(=47-\left[\left(720-300\right):14\right]\) 

\(=47-\left[420:14\right]\) 

\(=47-30\) 

\(=17\)