Stacy Ann Ferguson, also known as Fergie, is the female vocalist for the Black Eyed Peas. She joined the band in 2003, replacing Kim Hill[?]. She used to be in a teen band named Wild Orchid[?].
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... we get
<math>x=\frac{-b}{2a}\pm\frac{\sqrt{b^2-4ac}}{2a}=\frac{-b\pm\sqrt{b^2-4ac}}{2a}.</math>
Generalizations
The formula and its proof remain ...