Question

rut gon phan thuc

\(\dfrac{\left(-x\right)^5.a^2}{x^2.\left(-a\right)^3}\)

Answer 1

rút gọn phân thức:

\(\dfrac{\left(-x\right)^5.a^2}{x^2.\left(-a\right)^3}=\dfrac{x^2.\left(-x\right)^3.a^2}{x^2.\left(-a\right).a^2}=\dfrac{-x^3}{-a}=\dfrac{x^3}{a}\)

Answer 2

\(\dfrac{\left(-x\right)^5.a^2}{x^2.\left(-a\right)^3}\\ =\dfrac{\left(-x\right)^3x^2.a^2}{x^2.\left(-a\right).a^2}\\ =\dfrac{\left(-x\right)^3}{a}\)

Answer 3

\(\dfrac{\left(-x\right)^5.a^2}{x^2.\left(-a\right)^3}\\ =\dfrac{\left(-x\right)^3x^2.a^2}{x^2.\left(-a\right).a^2}\)

\(=\dfrac{\left(-x\right)^3}{a}\)