Question

Please help me on this

Answer 1

D. 22-8√5

Step-by-step explanation

We want to expand

`(2 √(5) - 4)(3 √(5) + 2)`

We use the distributive property to obtain,

`2 √(5) (3 √(5) + 2) - 4(3 √(5) + 2)`

We expand to get,

`6(5) + 4 √(5) - 12 √(5) - 8`

Simplify to get,

`22 - 8 √(5)`

The correct answer is D.