SOLUTION: How do I factor 10x^2-160

Question 897284: How do I factor
10x^2-160
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
First, look for common factors:
.
Next, see if you have a "special product, such as a perfect square, or a difference of squares.
Here you have a difference of squares:
.

If you did not recognize a special product, you would try to find factors
that multiply to give you .
You know that it would be something like
, with two numbners and that you have to find.
Since ,
and that has to equal ,
you are looking for numbers that make the coefficients the same.
It must be and .
To make the numbers for and muat be
either -1 and 16,
or 1 and-16,
or -1 and 8,
or 2 and -8,
or -4 and 4.
The only pair that adds up to 0 is -4 and 4, so

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