SOLUTION: Please show me how to multiply (x-1)(x+1)(x-3)(x+3) Thank you

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Question 328146: Please show me how to multiply (x-1)(x+1)(x-3)(x+3) Thank you
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


The product of a pair of conjugates, , is always the difference of two squares: .

So you have

Now just apply FOIL to the two quadratic binomials.

John