Question

Simplify Sqrt 245


Help me!!

Answer 1

15.65

Explanation:

you take 245

`\sqrt{245`

the answer you get is 15.65

Answer 2

7
`√(5)`

Explanation:

Express 245 as a product of prime factors

245 = 5 × 7 × 7 = 5 × 49 , then

using the rule of radicals

•
`√(ab)` ⇔
`√(a)` ×
`√(b)`

given

`√(245)`

=
`√(49(5))`

=
`√(49)` ×
`√(5)`

= 7
`√(5)`