Toán 177 : [ 2 . ( 4 mũ 2 – 9) + 3 mũ 2 ( 15 – 10) ] 04/10/2021 By Katherine 177 : [ 2 . ( 4 mũ 2 – 9) + 3 mũ 2 ( 15 – 10) ]
177 : [ 2 . ( 4^2 -9 ) + 3^2 (15 -10)] = 177 : [ 2 . (16 – 9) + 9 . 5 ] = 177 : [ 2 . 7 + 9 .5 ] = 177 : [ 14 + 45 ] = 177 : 59 =3 Trả lời
Đáp án:
….
177:59
=3
177 : [ 2 . ( 4^2 -9 ) + 3^2 (15 -10)] = 177 : [ 2 . (16 – 9) + 9 . 5 ]
= 177 : [ 2 . 7 + 9 .5 ]
= 177 : [ 14 + 45 ]
= 177 : 59 =3