SOLUTION: Please show me how to multiply (x-1)(x+1)(x-3)(x+3) Thank you
Algebra.Com
Question 328146: Please show me how to multiply (x-1)(x+1)(x-3)(x+3) Thank you
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
The product of a pair of conjugates, (x\ +\ a))
, is always the difference of two squares: 
.
So you have (x^2\ -\ 9))
Now just apply FOIL to the two quadratic binomials.
John
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