(x+a)(x+b)(x+c) Expand and Simplify

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Learn how to expand and simplify 3 brackets using the expansion formula for the example (x+a)(x+b)(x+c).
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We also can use Vieta’s formula to quickly expand the product given that -a, -b, -c are the roots

VSN
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Can you tell how to do just the opposite ?
I.e. from the expanded form to the condensed form ?

nilanjanaroy
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Hi, can u draw a geometrical figure for this identity?

cho