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Mathematics 16 Online
OpenStudy (scarlettfarra2000):

Check my answer please below

OpenStudy (scarlettfarra2000):

\[2\sqrt{80}+4\sqrt{125}\] \[2\sqrt{16}\sqrt{5}+4\sqrt{25}\sqrt{5}\]

OpenStudy (er.mohd.amir):

correct try to solve more

OpenStudy (scarlettfarra2000):

\[2\times8\sqrt{5}+4\times5\sqrt{5}\] \[16\sqrt{5}+20\sqrt{5}\]

OpenStudy (scarlettfarra2000):

\[(16+20)\sqrt{5}\] \[=36\sqrt{5}\]

OpenStudy (er.mohd.amir):

square root of 16 is 4.

OpenStudy (scarlettfarra2000):

Okay so I would do 4+20?

OpenStudy (er.mohd.amir):

multiple by 2 also since its given there 2*4 sqrt5

OpenStudy (scarlettfarra2000):

\[8\sqrt{5}\]

OpenStudy (er.mohd.amir):

add with 20 sqrt 5

OpenStudy (scarlettfarra2000):

\[160\sqrt{5?}\]

OpenStudy (er.mohd.amir):

(20+8) sqrt 5=28 sqrt 5 is ans

OpenStudy (scarlettfarra2000):

so it'd be \[28\sqrt{5}\]

OpenStudy (er.mohd.amir):

yes

OpenStudy (scarlettfarra2000):

Thank you @Er.Mohd.AMIR

OpenStudy (er.mohd.amir):

Ur Welcome.

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