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How would you algebraically factor x squared minus 15?

How would you algebraically factor x squared minus 15?
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1 vote
How would you algebraically factor x squared minus 15?

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User Chin Leung
by
8.2k points

1 Answer

1 vote

Use:a^2-b^2=(a-b)(a+b)\\-----------------------\\\\x^2-15=x^2-(√(15))^2=(x-√(15))(x+√(15))
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User Adam Bethke
by
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