SOLUTION: solve by completing the square. y^2 + 4y – 3 = 0

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Question 934055: solve by completing the square.
y^2 + 4y – 3 = 0
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
y%5E2%2B4y-3=0

y%5E2%2B4y=3

third term = (1/2co-efficient of middle term)^2
=(1/2(4))^2
=4
y%5E2%2B4t%2B4+=+3%2B4
%28y%2B2%29%5E2=+sqrt%287%29
take the square root
(y+2) = +/- sqrt%287%29
y = -2+/-sqrt%287%29