SOLUTION: Solve by completing the square and quadratic formula: 1.) 3x^2+8x+5=0 2.) x^2+4x+1=0

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Question 983694: Solve by completing the square and quadratic formula:
1.) 3x^2+8x+5=0
2.) x^2+4x+1=0

Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39625)   (Show Source): You can put this solution on YOUR website!
General solution for formula of quadratic equation is the shortcut for Completing the Square.

Help just on your #1:





-------Same equation but now in standard form.

Finding x




Observe the imaginary number.

Rationalizing the irrational term,


You could also use the formula for general solution of a quadratic equation, just substituting the coefficients into the formula.

and simplify it.

Answer by MathTherapy(10555)   (Show Source): You can put this solution on YOUR website!

Solve by completing the square and quadratic formula:
1.) 3x^2+8x+5=0
2.) x^2+4x+1=0
 

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