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

Algebra ->  Algebra  -> Polynomials-and-rational-expressions -> SOLUTION: Please show me how to multiply (x-1)(x+1)(x-3)(x+3) Thank you      Log On

Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!
Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!

   

Question 328146: Please show me how to multiply (x-1)(x+1)(x-3)(x+3) Thank you
Answer by solver91311(16868) 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