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Solve 2x^2+x+1=0...

Solve `2x^2+x+1=0`

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`2x^2+x+1`=0
Here D=`b^2-4ac`=`1^2-4xx1xx2=-7gt0`
`thereforex=-b+-sqrtD/2a`gives `x=`-1+-sqrt7i/4`
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PATHFINDER-QUADRATIC EQUATION AND EXPRESSION-QUESTION BANK
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