(-36x^4+4/3x^3+9x^2)/9^2
问题描述:
(-36x^4+4/3x^3+9x^2)/9^2
快 x是未知数
答
(-36x^4+4/3x^3+9x^2)/9^2
=-36x^4/9^2+4/3x^3/9^2+9x^2/9^2
=-4x^4/9+4x^3/243+x^2/9