Question

a) 9234 : [ 3.3 (1+8³) ]

b) 76 - { 2.[ 2.5² _ (31 _ 2.3)]}+3.25

(mong mn giải giúp mik,mik cảm ơn rất nhiều ạ)

Answer 1

a: \(=9234:\left(9\cdot513\right)=2\)

b: \(=76-\left\{2\cdot\left[50-25\right]\right\}+75\)

=76-50+75

=26+75=101

Answer 2

a) 9234 : [ 3.3 (1+8³) ]

= 9234 : [ 3.3 (1+512) ]

= 9234 : [ 3.3.513 ]

= 9234 : [ 9 . 513 ]

= 9234 : 4617

= 2

b) 76 - { 2.[ 2.5² - (31 - 2.3)]}+3.25

= 76 - { 2 . [ 2 . 25 - (31 - 6)]} + 75

= 76 - { 2 . [ 50 - 25 ]} + 75

= 76 - { 2 . 25 } + 75

= 76 - 50 + 75

= 26 + 75

= 101