Question

Tim x

(x - 2/5)² = 0

Answer 1

\(\left(x-\frac{2}{5}\right)^2=0\)

\(x-\frac{2}{5}=0\)

x = 2/5

Answer 2

ta có: 0² =0

nên \(x-\frac{2}{5}=0\)

\(x=0+\frac{2}{5}\)

\(x=\frac{2}{5}\)

Answer 3

\(\left(x-\frac{2}{5}\right)^2=0\)

\(\Rightarrow x-\frac{2}{5}=0\)

\(\Rightarrow x=\frac{2}{5}+0\)

\(\Rightarrow x=\frac{2}{5}\)

 

Answer 4

(x - 2/5)² = 0

x - 2²/5² = 0

x - 2/5    = 0

x            = 0 + 2/5

x            = 2/5

k mk nha pạn

chúc pạn học giỏi

Answer 5

=> x-2/5=0

=> x=2/5

vậy x=2/5

Answer 6

x=2/5