Need Help Solving 2r^2 +2r+1= 0?

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Homework Help Overview

The problem involves solving the quadratic equation 2r^2 + 2r + 1 = 0. Participants are exploring methods to find the roots of the equation, particularly through factoring and the quadratic formula.

Discussion Character

  • Exploratory, Mathematical reasoning, Assumption checking

Approaches and Questions Raised

  • The original poster expresses difficulty in factoring the equation. Some participants suggest finding the roots using the quadratic formula, while others question the calculations involved in that process.

Discussion Status

The discussion is ongoing, with participants providing feedback on the attempts made to apply the quadratic formula. There is a recognition of potential errors in calculations, and guidance is being offered without reaching a consensus on the correct roots yet.

Contextual Notes

Participants are discussing the need for proper use of parentheses in calculations and the implications of complex roots in the context of the quadratic formula.

Punchlinegirl
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I'm feeling really stupid right now, but I can't seem to get this to factor.
2r^2 +2r+1= 0
Can someone please help me out?
 
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You could factor it if you knew its roots, right?
 
so to find the roots I'd use the quadratic formula
-2 +/- \sqrt 4-8 /4
so then would my roots be -.5 +/- 2i?
 
I think you divided wrong. But you have the right idea. (And you should use parentheses when appropriate)
 

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