Question

What are the restrictions?
3(x - 4)(x + 3)
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(x + 5)(x + 4)

Answer 1

What would cause division by zero?

Answer 2

idk

Answer 3

The denominator contains two factors, (x+5) and (x+4); if either one of those equals zero, then the whole denominator goes to zero and division by zero is not allowed.

Answer 4

So.. what values of x would cause a zero to show up in the denominator?

Answer 5

I'm not sure

Answer 6

Then take each factor separately and set it equal to zero and solve for x.

Answer 7

x = -5
x = -4

Answer 8

That's all there is to it. X may be anything else, but is not allowed to be those numbers because that would cause division by zero.