Question

bài 2 : rút gọn các phân thức sau :

a.\(\frac{x^2-16}{4x-x^2}\left(x\ne0,x\ne4\right)\)

b.\(\frac{x^2+4x+3}{2x+6}\left(x\ne-3\right)\)

c.\(\frac{15x\left(x+y\right)^3}{5y\left(x+y\right)^2}\left(y\ne0;x+y\ne0\right)\)

d. \(\frac{5\left(x-y\right)-3\left(y-x\right)}{10\left(x-y\right)}\left(x\ne y\right)\)

e. \(\frac{x^2-xy}{3xy-3y^2}\left(x\ne y,y\ne0\right)\)

f. \(\frac{4x^2-4xy}{5x^3-5x^2y}\left(x\ne0,x\ne y\right)\)

g. \(\frac{\left(x+y\right)^2-z^2}{x+y+z}\left(x+y+z\ne0\right)\)

Answer 1

https://i.imgur.com/PTEMisy.jpg

Answer 2

https://hoc24.vn/hoi-dap/question/697806.html