Question

Simplify the following expreion:

NOTE: Be ure to how your work for brainliet. 6√28 - 10√7

Answer 1

2
`√(7)`

Explanation:

using the rule of radicals

`√(ab)` ⇔
`√(a)` ×
`√(b)`

simplifying the first term

`√(28)`

=
`√(4(7))`

=
`√(4)` ×
`√(7)`

= 2
`√(7)`

Then

6
`√(28)` - 10
`√(7)`

= 6(2
`√(7)` ) - 10
`√(7)`

= 12
`√(7)` - 10
`√(7)`

= 2
`√(7)`