121(x-y)^2-36(x+y)^2因式分解_数学解答

121(x-y)^2-36(x+y)^2因式分解

人气：469 ℃　时间：2020-01-30 08:50:51

解答

121（x-y)＾2－36(x+y)＾2
=[11(x-y)+6(x+y)][11(x-y)-6(x+y)]
=（11x-11y+6x+6y)(11x-11y-6X-6y)
=(17x-5y)(5x-17y)