Tính
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Bài 3: Tính
a) \(\frac{24y^5}{7x^2} \cdot \left(-\frac{49x}{12y^3}\right)\)
b) \(-\frac{6x+9}{x^2-3x+9} \cdot \frac{x^3+27}{3x-9}\)
c) \(\frac{2x^2-20x+50}{3x+3} \cdot \frac{x^2-1}{4(x-5)^3}\)
d) \(\frac{x^2-4x+4}{x^2-1} \cdot \frac{x+2}{x+1}\)
e) \(\frac{x^{-2y}}{3x+6y} \cdot \frac{x^2-4y^2}{x^2+4xy+4y^2}\)
Bài 3: Tính
a) \(\frac{24y^5}{7x^2} \cdot \left(-\frac{49x}{12y^3}\right)\)
b) \(-\frac{6x+9}{x^2-3x+9} \cdot \frac{x^3+27}{3x-9}\)
c) \(\frac{2x^2-20x+50}{3x+3} \cdot \frac{x^2-1}{4(x-5)^3}\)
d) \(\frac{x^2-4x+4}{x^2-1} \cdot \frac{x+2}{x+1}\)
e) \(\frac{x^{-2y}}{3x+6y} \cdot \frac{x^2-4y^2}{x^2+4xy+4y^2}\)