Question

tìm nghiệm của da thức x^2-x+1/4

Answer 1

Ta có : \(x^2-x+\dfrac{1}{4}=0\Leftrightarrow\left(x-\dfrac{1}{2}\right)^2=0\Leftrightarrow x=\dfrac{1}{2}\)

Answer 2

1/2

Answer 3

\(x^2-x+\dfrac{1}{4}=0\)

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

\(x-\dfrac{1}{2}=0\)

\(x=\dfrac{1}{2}\)