Question

2√72 + 5√242 what is the answer for this question please can u tell me the right answer​

Answer 1

67
`√(2)`

Explanation:

Assuming you require to simplify the expression.

Using the rule of radicals

`√(a)` ×
`√(b)` ⇔
`√(ab)`

Simplifying the radicals

`√(72)` =
`√(36(2))` =
`√(36)` ×
`√(2)` = 6
`√(2)`

`√(242)` =
`√(121(2))` =
`√(121)` ×
`√(2)` = 11
`√(2)`

Then

2
`√(72)` + 5
`√(242)`

= 2(6
`√(2)` ) + 5(11
`√(2)` )

= 12
`√(2)` + 55
`√(2)`

= 67
`√(2)`