Question

 a/ Thu gọn (5x^2y^2).(3x^2^3)

Answer 1

Sửa đề: \(5x^2y^2\cdot\left(3x^2\right)^3\)

\(=5x^2y^2\cdot27x^6\)

\(=5\cdot27\cdot x^2\cdot x^6\cdot y^2\)
\(=135x^8y^2\)

Answer 2

\((5x^2y^2)\cdot(3x^2y^3)\) (sửa đề)

\(=\left(5\cdot3\right)\left(x^2\cdot x^2\right)\left(y^2\cdot y^3\right)\)

\(=15x^4y^5\)

Answer 3

\(5x^2y^2.3x^2y^3=\left(5.3\right).\left(x^2.x^2\right).\left(y^2.y^3\right)=15x^4y^5\)