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Mathematics
Kenyon Harrell
19 March, 09:13
B²+b=2 how to complete the square
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Stephen Goodwin
19 March, 12:54
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B^2 + b = 2
b^2 + b + 1/4 = 2 + 1/4
(b + 1/2) ^2 = 9/4
b + 1/2 = (+-) sqrt 9/4
b + 1/2 = (+-) 3/2
b = - 1/2 + 3/2 = 2/2 = 1
b = - 1/2 - 3/2 = - 4/2 = - 2
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