4x^2-12x=-1

how do you work this out?
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1 Answer

4x2-12x=-1,

x2-3x=-¼,

x2-3x+9/4=9/4-1/4=2,

(x-3/2)2=2,

x-3/2=±√2,

x=3/2±√2, so x=2.9142, 0.0858 approx.

by Top Rated User (1.2m points)

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