anaslion111 anaslion111

18-08-2020
Mathematics

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anyone please help surds questions

anyone please help surds questions class=

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hippopotamus hippopotamus

18-08-2020

Answer:

[tex]2\sqrt{21}[/tex]

Step-by-step explanation:

We can multiply the two irrational terms, getting [tex]\sqrt{84}[/tex].

We see that 4 is a factor of 84, so we can rewrite [tex]\sqrt{84}[/tex] as [tex]\sqrt{4 (21) }[/tex]. We can take the 4 out, getting [tex]2\sqrt{21}[/tex].

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