Question

If X= 2+ root 3 find the value of X square+1upon 3X square

Please tell me this I request you

Answer 1

X=2+√3

X*2= (2+√3)*2

=4+3+4√3

7+4√3

3*X*2= 3(7+4√3)

21+12√3

sum= 7+4√3+21+12√3

28+16√3

I hope it helps