aaronm2056 aaronm2056

11-08-2018
Mathematics

contestada

How to simplify the square root of 80 minus two times the square root of 45?

Respuesta :

helenelisabeth helenelisabeth

11-08-2018

[tex] \sqrt{80}-2 \sqrt{45}= \sqrt{4 \cdot 4 \cdot 5}-2 \sqrt{9 \cdot 5}= 2 \cdot 2 \cdot \sqrt 5 - 2 \cdot 3 \cdot \sqrt 5 = [/tex]

[tex] =4 \sqrt5 - 6\sqrt5=\boxed{-2\sqrt5} [/tex]

-2√5 is your answer

Answer Link

Otras preguntas

What is filled with enzymes that can break down substances in cells to be used later?

Plz Help!!!!!When Butane burns, it combines with oxygen in the air to form carbon dioxide and water. What two elements must be present in butane?

Whitney Houston had this #1 song during Christmas 1992?

The racial girls to boys and my third hour class is 2:3 . There are 12 boys in my class how many girls are there

what was the source of nubia's wealth

Select all choices that apply. Mark the statement if it correctly describes the Mongol conquest of Russia. A. The Mongols who invaded Russia were called Kazans.

How do matter and energy interact to take light and turn it into glucose?

a sentences for interlunar

Which is greater 45/100 or 6/10? Please Answer :D?

A scale model of a building is 2.3 feet high. The ratio of the height of the model to the height of the building is 11:56. How tall is the building, in feet?