Help!!!

[Reborn09]

Okay, can someone please explain the zero-product principle to me? I am completely lost and I need help ASAP!!! Here's the problem:


(x-8)(x+3)=0

 

[serds]

(x-3)(x+5)=0
for x=3: (3-3)(3+5)=0*8=0
for x=-5: (-5-3)(-5+5)=-8*0=0

 

[stapel]

Okay, can someone please explain the zero-product principle to me?

If you've multiplied things together and the result is zero, then what MUST be the value of one of the things you'd multiplied? Is there ANY way to get a result of zero without at least one of the things being equal to zero itself?

That's all there is to the Zero-Product Principle: If you multiplied and got zero, then at least one of the things you multiplied must have been zero.

I am completely lost and I need help ASAP!!! Here's the problem:

(x-8)(x+3)=0

You multiplied and got zero. What does this tell you? If you apply this to each of the factors, what can you then do? How does this allow you to solve the equation? (CAREFULLY review those examples in your textbook and in your class notes!)