Question

[Thanh Sỹ]

Tính :
14x\(^2\)y\(^3\)-7xy\(^2\).(2x-3y)
mn giúp mik vs(viết đầy đủ nhé)!!!Thanks.

Answer 1

[『Kuroba ム Tsuki Ryoo ︵²ᵏ⁷』]

\(\text{∘}\) \(\text{Ans}\)

\(\downarrow\)

\(14x^2y^3-7xy^2\cdot\left(2x-3y\right)\)

`=`\(14x^2y^3-\left[7xy^2\cdot2x+7xy^2\cdot\left(-3y\right)\right]\)

`=`\(14x^2y^3-\left(14x^2y^2-21xy^3\right)\)

`=`\(14x^2y^3-14x^2y^2+21xy^3\)

\(\text{∘}\) \(\text{Kaizuu lv uuu.}\)