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Leviafan [203]
3 years ago
14

Factorise this equasion X^2-5

Mathematics
1 answer:
Morgarella [4.7K]3 years ago
6 0

Answer:

(x - \sqrt{5} )(x + \sqrt{5} )

Step-by-step explanation:

x² - 5 ← is a difference of squares and factors in general as

a² - b² = (a - b)(a + b) , then

x² - 5

= x² - (\sqrt{5} )²

= (x - \sqrt{5} )(x + \sqrt{5} )

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