4x²-3y(4x-3y) 2（x²-y²)+y-x 跪求,因式分解,详细点,要过程_数学解答

4x²-3y(4x-3y) 2（x²-y²)+y-x 跪求,因式分解,详细点,要过程

人气：488 ℃　时间：2019-12-22 21:29:04

解答

4x²-3y(4x-3y)
=4x²-12xy+9y²
=(2x-3y)²
2（x²-y²)+y-x
=2(x+y)(x-y)-(x-y)
=(x-y)(2x+2y-1)