Question

[tran phu]

  Thuc hien cac phep tinh

a) \(\frac{4x^2}{5y^2}:\frac{6x}{5y}:\frac{2x}{3y}\)

b)  \(\frac{x^2-4}{3x+12}.\frac{x+4}{2x-4}\)

c)  \(\frac{x^2-36}{2x+10}.\frac{3}{6-x}\)

Answer 1

[tran phu]

giải giùm tui đi 

Answer 2

[Phan Văn Hiếu]

a) \(\frac{4x^2}{5y^2}.\frac{5y}{6x}.\frac{3y}{2x}=\frac{4x^2.5y.3y}{5y^2.6x.2x}=1\)

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

c) \(\frac{\left(x-6\right)\left(x+6\right)}{2\left(x+5\right)}.\frac{-3}{x-6}=\frac{-3\left(x+6\right)}{2\left(x+5\right)}\)