xpineappleslusheex xpineappleslusheex

12-10-2018
Mathematics

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Factoriss fully. Brainliest answer will be awarded. 100 points up! please help quickly!
[tex]20 {x}^{2} - 5[/tex]

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ilzinhootigee ilzinhootigee

12-10-2018

Answer: 5 (2x+1 ) ( 2x - 1)

Step-by-step explanation:

Factor commum term 5 :

Rewrite 20 as 5*4

5 * 4x² - 5

Factor common term 5 :

= 5 ( 4x²-1 )

Factor 4x²-1 :

(2x+ 1) (2x-1 )

Therefore:

= 5 (2x+1 ) ( 2x - 1)

Hope that helps!

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