Respuesta :

Eddie1Wan

Answer:

-3√5

Step-by-step explanation:

3√5-2√45

3√5-2•√9×√5

3√5-2•3√5

3√5-6√5

-3√5

Tasyha

Answer:

c. [tex] - 3 \sqrt{5} [/tex]

Step-by-step explanation:

[tex]3 \sqrt{5} - 2 \sqrt{45} [/tex]

[tex] - 2 \times 3 \sqrt{5} = - 6 \sqrt{5} [/tex]

[tex]3 \sqrt{5} - 6 \sqrt{5} [/tex]

[tex](3 - 6) \sqrt{5} = - 3 \sqrt{5} [/tex]

[tex] \boxed{\green{= - 3 \sqrt{5} }}[/tex]