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Mathematics 13 Online
OpenStudy (anonymous):

how do you factor 4b^2-9

OpenStudy (zale101):

x² - y² = (x - y) (x + y) does this look familiar to u?

OpenStudy (zale101):

@lexii_g, u need to know how to use this formula

OpenStudy (zale101):

do u know how?

OpenStudy (zale101):

http://www.purplemath.com/modules/specfact.htm

OpenStudy (anonymous):

yes haha I just had a total blonde moment and I couldn't find it in my notes thank you

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