Solve x2 + 9x + 9 = 0. using quadratic formula

Question

mathslover · Answer

So here is a hint : 
$$\huge{x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}}$$

king · Answer

where a,b,c are coeffiecients of a quadratic eqn. ax^2+bx+c

mathslover · Answer

x is root of the quadratic equation : 
$\huge{ax^2+bx+c=0}$

king · Answer

substitute a,b,c in the formula to get x u will get 2 values as there are 2 roots of a quad. eqn.

rayford · Answer

is it -9root117 all over 2?

rayford · Answer

guys i dont get this man..all of my answer choices have a 10 at the end

rayford · Answer

oops sorry wrong question.

ash2326 · Answer

@rayford you got it?

rayford · Answer

is it -9 + or minus root 117 all over 2?

ash2326 · Answer

check again, there is a small mistake
Check the term in square root

rayford · Answer

3root5?

ash2326 · Answer

Correct, it'd be
$$\frac{-9\pm 3\sqrt 5}{2}$$

rayford · Answer

YES!!!!!! 100 ON MY EXAM YEAS!! ty i understand  now :[)

ash2326 · Answer

@rayford were you giving a test?

rayford · Answer

oh no! i was stating that 100 on my exam here i come. cause now that i understand i will do good on my exam :]

ash2326 · Answer

Great:D wish you great luck with that.
Let me know whenever you need help here. :D

rayford · Answer

thank you very much. lol champion