Question

[Nguyễn Thị Phương Linh]

(-3/4)^2 x (-6/9)^2

Answer 1

[Võ Ngọc Phương]

\(\left(\dfrac{-3}{4}\right)^2.\left(\dfrac{-6}{9}\right)^2\)

\(=\left(\dfrac{-3}{4}.\dfrac{-6}{9}\right)^2\)

\(=\left(\dfrac{1}{2}\right)^2=\dfrac{1}{4}\)

*Công thức: \(a^m.b^m=\left(a.b\right)^m\)

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