StarsetSociety
StarsetSociety StarsetSociety
  • 03-02-2017
  • Mathematics
contestada

Factor completely. 5x^2 - 45

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Аноним Аноним
  • 03-02-2017
Simple...

you have: [tex]5 x^{2} -45[/tex]

Using the box method-->>

5(x+3)(x-3)

Thus, your answer.
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altavistard
altavistard altavistard
  • 03-02-2017
Hint:  Divide both terms by 5 (that is, factor the 5 out of the given expression).

You will then have 5(x^2-9).  Factor (x^2-9) now.
Answer Link

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