SOLUTION: 3x-2x²=7

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Question 1084263: 3x-2x²=7
Found 2 solutions by Edwin McCravy, ikleyn:
Answer by Edwin McCravy(20054) About Me  (Show Source):
You can put this solution on YOUR website!
3x-2x%5E2%22%22=%22%227

-2x%5E2%2B3x%22%22=%22%227

-2x%5E2%2B3x-7%22%22=%22%220

2x%5E2-3x%2B7%22%22=%22%220

a=2, b=-3, c=7

x+=+%28-b+%2B-+sqrt%28+b%5E2-4ac+%29%29%2F%282a%29+

x+=+%28-%28-3%29+%2B-+sqrt%28+%28-3%29%5E2-4%282%29%287%29+%29%29%2F%282%282%29%29+

x+=+%283+%2B-+sqrt%289-56+%29%29%2F4+

x+=+%283+%2B-+sqrt%28-47+%29%29%2F4+

x+=+%283+%2B-+i%2Asqrt%2847+%29%29%2F4+

Edwin

Answer by ikleyn(52778) About Me  (Show Source):
You can put this solution on YOUR website!
.
On solving quadratic equations see the lessons
    - Introduction into Quadratic Equations
    - PROOF of quadratic formula by completing the square
    - HOW TO solve quadratic equation by completing the square - Learning by examples
    - Solving quadratic equations without quadratic formula

Also, you have this free of charge online textbook in ALGEBRA-I in this site
    - ALGEBRA-I - YOUR ONLINE TEXTBOOK.

The referred lessons are the part of this textbook under the topic "Quadratic equations".