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