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OpenStudy (anonymous):
use the quadratic formula to find any x intercepts on the graph of the equation y=x^2+2x+1
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OpenStudy (anonymous):
x^2+2x+1=0 \[x=\frac{ -2\pm \sqrt{4-4} }{ 2 }=\frac{ -2 }{ 2 }=-1\]
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