How to expand abab

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=y3oPpfhkBsY

How to expand (a+b)(a-b) to equal a^2-b^2? • The steps to expand two brackets is to multiply each term in the first bracket with each term in the second bracket. • There are mnemonics such as the FOIL method to aid in memorization, however if you can approach it systematically as shown in this video. • Please consider supporting the channel on Patreon: • / cowanacademy • Music by Adrian von Ziegler

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