Question

177 : [2 . ( 4²-9) +3² . (15-10)

ai k minh minh k lai

Answer 1

\(177:\left[2.\left(4^2-9\right)+3^2.\left(15-10\right)\right]\)

\(=177:\left[2.\left(16-9\right)+9.\left(15-10\right)\right]\)

\(=177:\left[2.7+9.5\right]\)

\(=177:\left[14+45\right]\)

\(=177:59\)

\(=3\)

Answer 2

177:[2.(4²-9)+3².(15-10)

=177 :[2.(16-9)+9.(15-10)

=177: [2.7 +9.5]

=177:[14+45]

=177:59

=3