Question

\(\left(x-\frac{1}{2}\right)^2=16\) tìm x

Answer 1

(x-1/2)^2 = 16

(x-1/2)^2 = 4^ 2

x-1/2 = 4

x= 4,5

Answer 2

x=4,5

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Answer 3

\(\Rightarrow\left(x-\frac{1}{2}\right)^2=4^2\)

\(\Rightarrow\orbr{\begin{cases}x-\frac{1}{2}=4\\x-\frac{1}{2}=-4\end{cases}\Rightarrow\orbr{\begin{cases}x=\frac{9}{2}\\x=-\frac{7}{2}\end{cases}}}\)

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Answer 4

\(\left(x-\frac{1}{2}\right)^2=16\)

\(\left(x-\frac{1}{2}\right)^2=4^2\)

\(\left(x-\frac{1}{2}\right)=4\)

\(x=4+\frac{1}{2}\)

\(x=4,5\)

Answer 5

\(\left(x-\frac{1}{2}\right)^2=16\)

\(\left(x-\frac{1}{2}\right)^2=4^2\)

\(\Leftrightarrow\orbr{\begin{cases}x-\frac{1}{2}=4\\x-\frac{1}{2}=-4\end{cases}}\)\(\Rightarrow\orbr{\begin{cases}x=\frac{9}{2}\\x=-\frac{7}{2}\end{cases}}\)