OpenStudy (anonymous):

I don't understand what the difference of squares is, what is it, and why and when do you use it?

1 year ago
pooja195 (pooja195):

Here's an example \[\huge~\rm~\bf~x^2-25\] Basically what we want to do is square root it so we get a solution that looks like this (a+b)(a-b) <---in this form \[\huge~\rm~\bf~\sqrt{x^2}-\sqrt{25}\] When you square root this you get (x+5)(x-5) To check if you have done it right simply foil the answer

1 year ago
pooja195 (pooja195):

This might be very useful to you :) http://www.mathsisfun.com/algebra/special-binomial-products.html

1 year ago
OpenStudy (anonymous):

Thank you!

1 year ago
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