Question

Solve this quadratic equation.

x2 + 5x + 3 = 0

Answer 1

Tell me what is a, b and c here??

Answer 2

1, 5 and 3

Answer 3

So do you know how to find Discriminant??

Answer 4

0_o NO

Answer 5

go here: http://www.google.com/imgres?imgurl=http://www.mathwarehouse.com/quadratic/images/quadratic-formula-example.gif&imgrefurl=http://www.mathwarehouse.com/quadratic/the-quadratic-formula.php&h=355&w=376&sz=6&tbnid=3VYF3G0ZSVD9wM:&tbnh=90&tbnw=95&prev=/search%3Fq%3Dquadratic%2Bequation%26tbm%3Disch%26tbo%3Du&zoom=1&q=quadratic+equation&usg=__1igqOgl_LgZBUAgc4YoOp2Yr9Qk=&docid=wkSk3V1H5JPeTM&hl=en&sa=X&ei=ZITyT4y_K4Wc8gSm5dnDBg&sqi=2&ved=0CG4Q9QEwBw&dur=6075

Answer 6

Well, the formula is:
\[D = b^2 - 4ac\]

So you know a b and c just plug in to find D..

Answer 7

D = 13

Answer 8

Since the question is solving the quadratic equation, you can apply the quadratic formula to solve x.
\[x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}\]

Answer 9

Yes you are right....

Now to find roots:

\[x = \frac{-b \pm \sqrt{D}}{2a}\]