Question

5^2x-3 - 2x5^2 = 5^2 x 3

Tìm X

Answer 1

5^2x-3 - 2x5² = 5² x 3

5^2x-3 - 2x5² =  75

5^2x-3 - 50 = 75

5^2x-3 = 75 +50

5^2x-3 =  125 = 5³

=>  2x - 3 = 3

=> 2x = 3+3

=> 2x = 6

=>x = 6:2

=> x = 3

tick nhé

 

Answer 2

bạn nên tự suy nghĩ làm thì hơn

Answer 3

5^2x-3-2.5²=5².3

5^2x-3-2.25=25.3

5^2x-3-50=75

5^2x-3=75+50

5^2x-3=125=5³

2x-3=3

2x=3+3

2x=6

x=6:2

x=3

Vay x = 3