URGENT ALGEBRA HELP!?
回答 (2)
2016-09-12 3:46 am
(x+y)^2 = x^2+y^2+2xy = 36-20 = 16
x+y = 4 or -4
x+y = 4 or -4
2016-09-12 3:44 am
(x+y)^2=16--->x+y = ...
收錄日期: 2021-04-21 21:53:15
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