Solving Quadratic Equations - Cool math Algebra Help Lessons - Solving Quadratic Equations by Factoring

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Coolmath Algebra
Solving Quadratic Equations Lesson 3 - Freaky Things That Can Happen (page 2 of 3)
---- This algebra lesson explains the freaky things that can happen when you solve quadratic equations by factoring.

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The other thing that can happen isn't super freaky... But, it will make your life a lot easier.

Let's say you're given this:

3 + 5x - 2x^2 = 0

Notice that the squared guy is negative. This makes factoring a really creepy experience.

Remember... these guys are equations... So, all of our old tricks work.

Can we multiply both sides by -1 ? Sure can, Skippy! Do it!

-1 * (3 + 5x - 2x^2 ) = 0 * ( -1 ) which gives -2 - 5x + 2x^2 = 0

Now, just rearrange it like you're used to:

Finish it!

YOUR TURN:

Solve

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