Question

Giúp mik bài 1 vs ạ!!

Answer 1

1:

a: =8x^3-y^3-8x^3+8x^2y

=8x^2y-y^3

b: =8x^3-y^3-8x^3=-y^3

c: =2x^2-3xy+5y^2

d: \(=\dfrac{2x^3-10x^2-11x^2+55x+12x-60}{x-5}=2x^2-11x+12\)

e: \(=\dfrac{2x^4-6x^2+x^3-3x+x^2-3}{x^2-3}=2x^2+x+1\)

f: =(x+y)^2/(x+y)

=x+y