a^2-2ab+b^2-1化简分式咋算
问题描述:
a^2-2ab+b^2-1化简分式咋算
答
a^2-2ab+b^2-1=(a-b)²-1=(a-b+1)(a-b-1)
答
a^2-2ab+b^2-1
=(a-b)^2-1
=(a-b+1)(a-b+1)
答
(a-b)^2-1
答
(a-b)^2-1=(a-b+1)(a-b-1)
答
a^2-2ab+b^2-1
=(a-b)^2-1
=(a-b+1)(a-b-1)