(1)x^2-2x/4-x^2 (2)a^2-6a+9/a^2-9 (3)3ax ^3X^3y/9xy^2-9axy^2
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(1)x^2-2x/4-x^2 (2)a^2-6a+9/a^2-9 (3)3ax ^3X^3y/9xy^2-9axy^2
(1)x^2-2x/4-x^2 (2)a^2-6a+9/a^2-9 (3)3ax ^3X^3y/9xy^2-9axy^2
(1)x^2-2x/4-x^2 (2)a^2-6a+9/a^2-9 (3)3ax ^3X^3y/9xy^2-9axy^2
您好:
(1)x^2-2x/4-x^2
=x(x-2)/(2+x)(2-x)
=-x/(x+2)
(2)a^2-6a+9/a^2-9
=(a-3)^2/(a+)(a-3)
=(a-3)/(a+3)
(3)3ax ^3X^3y/9xy^2-9axy^2
抄错了吧
不明白,可以追问
如有帮助,记得采纳,谢谢
祝学习进步!