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

Find the area of the triangle. 18 in. 25 in.
Which best describes an Ancient Greek tragedy
pleaseeee I need help ...please help !!!!​
what is the area of the figure below? A. 58 in^2 B. 63 in^2 C. 61 in^2 D. 53 in^2
When is DNA replicated? during mitosis immediately before cytokinesis GO phase Sphase
A model train is built at a scale of 1 to 60. If the model train is 10 inches long, how many feet long is the actual train?
PLEASE HELP! I REALLY NEED IT
The followings are financial statements of a sole proprietor EXCEPT theStatement of Changes in EquityStatement of Profit or Loss and Other Comprehensive IncomeS
What training do you think is required to become a specialist? Why?
PLEASE HELP ASAP! Read the passage from a statement given by President Franklin D. Roosevelt. Today a hope of many years’ standing is in large part fulfilled. T