2a³-4a²b+2ab²
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2a³-4a²b+2ab²2a³-4a²b+2ab²2a³-4a²b+2ab²2a³-4a²
2a³-4a²b+2ab²
2a³-4a²b+2ab²
2a³-4a²b+2ab²
2a³-4a²b+2ab²
＝2a(a²-2ab+b²)
=2a(a-b)²
原式=2a(a²-2ab+b²)
=2a(a-b)²
2a³-4a²b+2ab²
=2a(a-b)²
2a -4a b+2ab = 2a?a -2ab+b ? =2a?a-b? 2a(a -2a+b ) =2a(a-b) =2a(a -2a+b ) =2a(a-b) 1