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3 votes
What is the answer to x=5-y x+xy+2y^(2)=2

2 Answers

0 votes
x(1+y)+2y^(2)=2
(5-y)(1+y)+2y^(2)=2
5+5y-y^(2)+2y^(2)=2
y^(2)+4y+5=2
y^(2)+4y+3=0
(y+1)(y+3)=0
➡️y=-1 or y=-3
x=6 or 8
answered
User Roman Yankovsky
by
8.2k points
1 vote
y=5/y+1 and x=-2y^2+2/y+1
answered
User Tobias Lins
by
7.9k points

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