identify the conjugate of 4v(2)-2v(3)

Question

 

a. 4√(2)-√(3)
b. √(2)+√(3)
c. 4√(2)+2√(3)
d. √(2)-2√(3)

Answer 1

 4 √2  - √3

 

 

Conjugate , when added should be 0's out the radicals. In here there is no rational part, therefore conjugate

  should be add 0 all the radicals , therefore:

 

   - 4 √2 + 2√3 , should be the answer, which is not one of the choices. Make sure copied the problem correctly.

 

    4 √2 - 2 √3 - 4√2 + 2√3 = 0