giúp em vs mn ơi

a/4x . (2x² + 3x - 1)

b/(-2x³)(x² + 5x -\(\dfrac{1}{2}\) )

c/(3x³y -\(\dfrac{1}{2}\) x² +\(\dfrac{1}{5}\) xy).6xy³

d/(x - 2)(6x²- 5x + 1)

e/(\(\dfrac{1}{2}\)xy - 1)(x³ - 2x - 6)

f/(x + 3)(x² + 3x - 5)

g/ (xy - 1)(xy + 5)

giúp mình vs mn ơi

Help em

Help mình