Question

(3/7 - 2x)^2 = 4/9

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Answer 1

\(\left(\dfrac{3}{7}-2x\right)^2=\dfrac{4}{9}\)

\(\Rightarrow\left[{}\begin{matrix}\dfrac{3}{7}-2x=\dfrac{2}{3}\\\dfrac{3}{7}-2x=-\dfrac{2}{3}\end{matrix}\right.\)\(\Rightarrow\left[{}\begin{matrix}2x=-\dfrac{5}{21}\\2x=\dfrac{23}{21}\end{matrix}\right.\)

\(\Rightarrow\left[{}\begin{matrix}x=-\dfrac{5}{42}\\x=\dfrac{23}{42}\end{matrix}\right.\)