Question

Answer 1

\(\left(-\dfrac{2}{3}x^3y^2\right)\cdot\left(\dfrac{3}{4}xy^3\right)\)

\(=-\dfrac{2}{3}\cdot\dfrac{3}{4}\cdot x^3y^2\cdot xy^3\)

\(=-\dfrac{1}{2}x^4y^5\)

Bậc là 4+5=9