Respuesta :

katie137835

Answer:

=3√5

Step-by-step explanation:

Simplifying this expression involves prime factorisation of

45

45 = 3⋅3⋅5

(3 and 5 are the prime factors of 45)

So √45

=√3⋅3⋅5

=√32⋅5

=3⋅√5

=3√5

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