分解因式m的2次方减4n的2次方加4n减1

分解因式m的2次方减4n的2次方加4n减1
2025-03-03 05:42:33
推荐回答(1个)
回答1:

m^2-4n^2+4n-1
=m^2-(4n^2-4n+1)
=m^2-(2n-1)^2
=(m+2n-1)(m-2n+1)