Question

1. thực hiện phép tính:

a) 3⁶:3²+2³.2²

b) (39.42-37.42):42

 

Answer 1

a) 3⁶:3²+2³.2²

= 3^6-2+2³⁺²

= 3⁴+2⁵= 81 + 32 = 113 (nhấc điện thoại lên nào bạn ơi)

b) (39.42-37.42):42

= [(39 - 37).42)] : 42

= (2.42):42

= 84 : 42 = 2

Answer 2

a, 3⁶:3³+2³.2²

=3^6-2+2³⁺²

=3⁴+2⁵

=81+32

=113

Answer 3

a) 3⁶:3²+2³.2²=3^6-2+2³⁺²=3⁴+2⁵=81+32=113

b)(39.42-37.42):42=[(39-37).42]:42=(2.42):42=2

Answer 4

a) \(3^6\):\(3^2\)+\(2^3\).\(2^2\)=\(3^4\)+\(2^5\)=81+32=113

b) (39.42-37.42):42=[ 42.(39-42)]:42= [ 42 . (-3)]:42=-126:42=-3

Answer 5

a)3⁶:3²+2³.2²=3^6-2+2³⁺²=3⁴+2⁵=81+32=113

b)(39.42-37.42):42=[(39-37).42]:42=(2.42):42=84:42=2

Answer 6

a=113

b=2

Answer 7

a) 3⁶ : 3² + 2³ . 2²

= 3^6-2 + 2³⁺²

= 3⁴ + 2⁵

= 81 + 32

= 113

b) ( 39 . 42 - 37 . 42 ) : 42

= [ 42 . ( 39 - 37 ) ] : 42

= [ 42 . 2 ] : 42

= 84 : 42

= 2

Answer 8

3^6:3^2 + 2^3.2^2= 3^4+2^5

                         =81+32=113

    (39.42-37.42):42

=  (39-37).42:42

=  2.42:42

=  2