Question

Thu gọn các đơn thức sau:

a) 1\(\frac{1}{4}\)x²y \(\left(\frac{-5}{6}xy\right)^0\)\(\left(-2\frac{1}{3}xy\right)\)

b) \(\frac{1}{2}x\frac{1}{4}x^2\frac{x^3}{8}2y4y^28y^3\)

c) \(\left(2\frac{1}{3}x^2y^3\right)^{10}\left(\frac{3}{7}x^5y^4\right)^{10}\)

d) \(\left(-\frac{a}{2}\right)^33xy\left(4a^2x^3\right)\left(4\frac{1}{3}ay^2\right)\)

Answer 1

a.\(\frac{5}{4}x^2y.\left(\frac{-5}{6}xy\right)^0\left(\frac{-7}{3}xy\right)\)= \(\frac{5}{4}x^2y.1.\left(\frac{-7}{3}xy\right)\)= \(\frac{-35}{12}x^3.y^2\)

câu b, c,d làm tương tự như trên nha ^.^