## Abbie23 Group Title 2x2 + 9x + 4 = 0 solve by using the quadratic formula. 3 years ago 3 years ago

1. bendt Group Title

$ax^2+bx+c=0\implies x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$Work it out for yourself.

2. Annand Group Title

just substitute a,b and c into the eqn provided by bendt... here a=2 b=9 c=4

and verify the results by factoring.

4. Abbie23 Group Title

Aww thanks you're awesome:)

5. Annand Group Title

That was another method of finding the roots... Sorry, i deleted it thinking it might confuse you...

6. Abbie23 Group Title

It's okay you still tried to help so that's all that matters:)