Which expression is equal to 4√20-3√45? - 11√5, √5, 11√5, √-5

Question

Mathematics

Saunders

1 May, 18:33

Which expression is equal to 4√20-3√45? - 11√5, √5, 11√5, √-5

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Answers (1)

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Palmer · Answer 1

4√20 - 3√45

4√ (4 * 5) - 3√ (9 * 5)

8√5 - 9√5

-√5

It seems this is not one of your answer choices, but having checked it twice, I am sure it is the answer. Did you mistype your question or one of your answers?