Question

thu gọn

-4/7.2^2yx5xy^2

Answer 1

\(\dfrac{-4}{7}.2^2yx.5xy^2\) 

= (\(\dfrac{-4}{7}.2^2.5\))\(\left(y.y^2\right)\left(x.x\right)\)

= \(-\dfrac{80}{7}\)\(y^3x^2\)

Answer 2

\(-\dfrac{4}{7}.2^2y.5xy^2\\=\left(-\dfrac{4}{7}.2^2.5\right)\\ =-\dfrac{80}{7}xy^3\)