Question

Thực hiện phép tính:

g) (x - 3y) (x\(^2\) . 3xy + 9y\(^2\)) (2x + y)

h) (x\(^2\) + y\(^3\)) (x\(^4\) + 2x\(^2\)y\(^3\) + y\(^6\))

Answer 1

Yukru

Answer 2

g: \(=\left(x^3-27y^3\right)\left(2x+y\right)\)

\(=2x^4+x^3y-54xy^3-27y^4\)

h: \(=x^6+y^9\)

Answer 3

g,=\(\left(x^3-27y^3\right)\left(2x+y\right)\)\(=2x^4+x^3y-54xy^3-27y^4\)

h,=\(x^6+y^9\)