# Math Help - Solving quadratic equations

Hii... I need help with some of this excersises...

1) Solve 3x2 + 4x = 2
2) Solve x2 + 9x + 9 = 0
3) Solve 2x2 = 14x + 20

butt the answer cannot be like x= something and x= something else... it must be like ... or i don't know... Please help because I don't know how to dp that.. thanks...!

For $\displaystyle ax^2+bx+c = 0 \implies x = \frac{-b\pm \sqrt{b^2-4ac}}{2a}$

3. ## Re: Solving quadratic equations

Originally Posted by raimel
Hii... I need help with some of this excersises...

1) Solve 3x2 + 4x = 2
2) Solve x2 + 9x + 9 = 0
3) Solve 2x2 = 14x + 20

butt the answer cannot be like x= something and x= something else... it must be like ... or i don't know... Please help because I don't know how to dp that.. thanks...!