SOLUTION: Try factoring first. If factoring is not possible or is difficult, use the quadratic formula. 2x^2 + 8x = -1

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Try factoring first. If factoring is not possible or is difficult, use the quadratic formula. 2x^2 + 8x = -1      Log On


   

Question 173415This question is from textbook Introductory Algebra
: Try factoring first. If factoring is not possible or is difficult, use the quadratic formula.
2x^2 + 8x = -1 This question is from textbook Introductory Algebra

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
2x^2 + 8x = -1
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2x^2 + 8x + 1 = 0
Quad Formula:
x = [-8 +- sqrt(64-4*2*1)]/4
x = [-8 +- sqrt(56)]/4
x = [-8 +- 2sqrt(14)]/4
x = [-2 +- (1/2)sqrt(14)]
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Cheers,
Stan H.