Question

How do you evaluate 7√2 + √50 - 2/18?

Answer 1

Solution:

7√2+√50-2√18

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i) √50 = √(5×5×2) = 5√2

ii) 2√18 = 2√(3×3×2) = 6√2

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= 7√2+5√2-6√2

= (7+5-6)√2

= (12-6)√2

= 6√2

Therefore,

7√2+√50-2√18 = 6√2

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Answer 2

Hey!

Refer the below attachment !

Thanks!