Question

simply = √50 -√98+√162

Answer 1

root 50 = 5 root 2
root 98=7root2
root 162=9 root 2
Therefore required answer
5root2-7root2+9root2=7root2

Answer 2

QUESTION :

simply = √50 -√98+√162

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ANSWER :

HERE ,

√50 = √(25×2)

=5√2

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ALSO,

√98 = √(49×2)

=7√2

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ALSO,

√162 = √(81×2)

=9√2

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SO PUT ALL THE VALUES IN THE GIVEN QUESTION

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√50 - √98 + √162

= 5√2 - 7√2 + 9√2

=5√2+2√2

=7√2

=√(2×49)

=√98

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