# SOLUTION: Solve by using the quadratic formula: x2 + 7x = -3.

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 Quadratics: solvers Practice! Answers archive Lessons Word Problems In Depth

 Question 287661: Solve by using the quadratic formula: x2 + 7x = -3. Answer by texttutoring(324)   (Show Source): You can put this solution on YOUR website! Set the right side of the equation to zero by adding 3 to both sides of the equation: The quadratic formula is: In your question a=1 b=7 c=3 To be exact, you can leave your answer like that, with the radicals. Note that you have two answers, one for the + sign and one for the - sign. If you want to write your answers as decimals, they would be: x=-0.4586 or x=-6.541