f.2因式分解 2

我加上了一個括號令原式更易了解。

(2m-3n)² / 4mn x 8m /(4m - 6n)

=【 (2m-3n)²/(4mn)】【 8m / [2(2m-3n)】

=【 (2m-3n)²(8m)】【 [2(2m-3n)(4mn)】

=【 8m(2m-3n)(2m-3n)】 / 【 (8m)(n)(2m-3n)】

= (2m-3n)/n

(2m-3n)^2 / 4mn x 8m / 4m - 6n

=(2m-3n)(2m-3n)/4m(nx2)/2(2m-3n)

=[(2m-3n)(2m-3n)/(4m．2n)]．1/2(2m-3n)

=(2m-3n)/(4m．2n)．1/2

=(2m-3n)/16mn