Sunday

April 20, 2014

April 20, 2014

Posted by **mary** on Sunday, March 30, 2008 at 6:52pm.

2. solve by completing the square. x^2=5x+2

3.solve by using the square roots method. 5(x-2)^2=3

- math -
**Reiny**, Sunday, March 30, 2008 at 7:17pmare you studying quadratic equations?

If so, then I am surprised that you cannot do these straightforward questions.

Do you not have a textbook?

I will do the first one

5x^2+x=3

5x^2 + x - 3 = 0

x = (-1 ±√(1 - 4*5*(-3))/10

x = (-1 ±√61)/10

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