Question

(2x-1)²=121

Làm ơn hãy giúp mình nha

Answer 1

(2x-1)²=121

<=> 121 = 11² = 11.11

=> 2x-1 = 11

2x = 11+1

2x = 12

x = 12 : 2

x = 6

Answer 2

( 2x - 1) ² = 121

 ( 2x - 1)²= 11²

=> 2x- 1 = 11

=> 2x    = 11+1

=> 2x   = 12

=> x     = 12:2

=> x    =6

ait ick mik mik ick lại nha

Answer 3

\(\left(2x-1\right)^2=121=11^2\)

\(\Rightarrow\left(2x-1\right)=11\)

\(2x=11+1\)

\(2x=12\)

\(x=\frac{12}{2}\)

\(x=6\)

\(k.minh.nha\)