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I don't know what method I should use to solve for y in this equation: (y-3)^2=4y-12

I don't know what method I should use to solve for y in this equation: (y-3)^2=4y-12
asked 17.1k views
1 vote
I don't know what method I should use to solve for y in this equation: (y-3)^2=4y-12

asked
User Erick Mwazonga
by
8.1k points

1 Answer

3 votes
(y-3)^2 -4y +12 = 0
[y^2 -6y +9] -4y +12 =0
y^2 -10y + 21 = 0
(y -3) (y-7) =0
y=3 ; y = 7
answered
User Mojtaba Barari
by
7.9k points
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