How do you solve x(2x-1)=212 for the value of x?

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anonymous · Answer 1 · 2013-03-03T14:46:10+0000

x(2x-1)=212

2x^2 -x -212=0

x=10.548665 & -10.048665

-b/2a=0.25

b^2 -4ac=1697, root(1697)=41.914659848, root/2a=10.29866496