来自陈永琴的问题
(1)4a^2-20ab+25b^2-36(2)x^6-y^6-2x^3+1(3)a^4b+a^3b^2-a^2b^3-ab^4a^2相当于a的2次方~x^2-6x-5
(1)4a^2-20ab+25b^2-36
(2)x^6-y^6-2x^3+1
(3)a^4b+a^3b^2-a^2b^3-ab^4
a^2相当于a的2次方~
x^2-6x-5
1回答
2020-07-1522:40