Question

tính hợp lí

( 2^5 . 7^2 + 2^5 ) : ( 2^5 . 5^2 - 2^5 . 20 )

Answer 1

  ( 2⁵ . 7² + 2⁵ ) : ( 2⁵ . 5² - 2⁵ . 20 )

= ( 2⁵ . 2⁵ + 7² ) : ( 2⁵ . 2⁵ - 4 . 5 . 5² )

= ( 2¹⁰ + 7² ) : ( 2¹⁰ - 4 . 5³ )

= ( 1024 + 49 ) : ( 1024 - 500 )

= 1073 : 524

= 2,047709924

Hk tốt

Answer 2

( 2^5 . 7^2 + 2^5 ) : ( 2^5 . 5^2 - 2^5 . 20 )=

(2^5.2^5+7^2):(2^5.2^5-4.5.5^2)=

(1024+49):(1024-500)=

1073:524=

2,047709924 hoặc 1073/524

học tốt