Respuesta :

msm555

Answer:

Solution given;

[tex] \sqrt{ \dfrac{225}{9} } [/tex]

[tex] \sqrt{ \dfrac{15²}{3²} } [/tex]

[tex] \sqrt{ (\dfrac{15}{3} )²} [/tex]

[tex]\dfrac{15}{3}[/tex]

=5

mhanifa

Answer:

First, simplify the content under root:

  • [tex]\sqrt{\frac{225}{9}} =\\\\\sqrt{25}}} \\[/tex]

Now, use the following identity:

  • [tex]\sqrt{a^2} = |a|[/tex] = ± a

Last, we get:

  • √25 = √5² = ± 5

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