Question

tìm x biết x² - x +0.25 =0

Answer 1

              \(x^2-x+0,25=0\)

\(\Leftrightarrow\)\(\left(x-\frac{1}{2}\right)^2=0\)

\(\Leftrightarrow\)\(x-\frac{1}{2}=0\)

\(\Leftrightarrow\)\(x=\frac{1}{2}\)

Vậy   x = 1/2

Answer 2

\(x^2-x+0.25=0\)

\(x^2-x+0=0\)

\(\Rightarrow x^2-x=0\)

\(\Rightarrow x=0\)

Answer 3

bằng 0.5