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

I'm running for house captain and I have to make a presentation " In it you should outline why you would be the ideal House Captain and how you will represent *
The average weight of a 12 year old boy in the US is 45 kg. If there are 2.2046 pounds in a kg, what is the average weight in pounds? Round your answer to the n
Identify the number of terms in the following algebraic expression. 3x + 2y - 5
If an ecosystem does not contain a high amount of biodiversity, predators may eat too many keystone species. This will lead to... O the ecosystem remaining stab
organizations use to achieve a good fit between organizational goals and an employee’s abilities.
identify the equation whose graph is a vertical line y=2x-1 y=2 or x=2
in uniaxial movement at the elbow joint, the movement allowed is:
Which statement below best explains what the drawing illustrates
How is heat gained in the body
The mass of a baby is 3.4kg, correct to 1 decimal place. What is the minimum mass of the baby?​