SOLUTION: Could you please help me to solve this: Using the quadratic formula solve: 2x^2 + 4x

SOLUTION: Could you please help me to solve this: Using the quadratic formula solve: 2x^2 + 4x - 7 = 0 Thanks a lot

Question 753459: Could you please help me to solve this:
Using the quadratic formula solve: 2x^2 + 4x - 7 = 0
Thanks a lot

Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Have you covered completing the square?
That's how I would do it.

Divide both sides by

Add to both sides

Take of the co-efficient of the
term, square it, then add it to
both sides
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Take the square root of both sides

and also

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These are the 2 answers. You can "clean them up"
by multiplying the 2nd term by
That will give you:

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Also, you can check both answers by plugging them
back into original equation.
Hope this helps

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