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Find the simplest value of 2sqrt(50)+sqr...

Find the simplest value of `2sqrt(50)+sqrt(18)-sqrt(72)` (given `sqrt(2)=1.414` ) .

A

`4.242`

B

`9.898`

C

`10.312`

D

`8.484`

Text Solution

Verified by Experts

The correct Answer is:
B
`2sqrt(50)+sqrt(18)-sqrt(72)`
`2xx5sqrt(2)+3sqrt(2)-6sqrt(2)`
`=13sqrt(2)-6sqrt(2)`
`=7sqrt(2)=7xx1.414`
`=9.898`
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