a^2b^2-2ab+1 因式分解
问题描述：
a^2b^2-2ab+1 因式分解
答
a^2b^2-2ab+1
=(ab)²-2ab+1
=(ab-1)²
a^2b^2-2ab+1 因式分解
a^2b^2-2ab+1
=(ab)²-2ab+1
=(ab-1)²