Question

(2x+1)^3=125

 

Answer 1

(2x + 1 )^3 = 125

(2x + 1 )^3=5^3

\(\Leftrightarrow\)2x + 1 =5

2x = 5-1

2x = 4

x=4:2

x=2

Answer 2

(2x+1)^3=125 

<=>2x+1=5 (vì là bậc 3 nên giữ nguyên dấu) 

<=>2x=4 

=>x=2

Answer 3

x^10=1^x