How do you factor completely $100 - 9x^2$ ?

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Answer 1 · 2016-04-13T20:57:26

$(10-3x)(10+3x)$

The expression $100-9x^2$ is the difference of two perfect squares and can be factored as follows:

$(10-3x)(10+3x)$

How do you factor completely 100 - 9x^2100 - 9x^2?