Question

N = ( √2₊√3₊1)²₋2(√6₊√3₊√2) Rezolvati ecuatia N supra 2 si x este in dreptul liniei de frctie = x²₊2

Answer 1

N=2+√6+√2+√6+3+√3+√2+√3+1-2√6-2√3-2√2=
N=6+2√6+2√3+2√2-2√6-2√3-2√2=6
N=6
(N/2)·x=x²+2
(6/2)·x=x²+2
3x=x²+2
-x²+3x-2=0                    ·(-1)
x²-3x+2=0
Δ=9-8=1
x₁=(3-1)/2=2/2=1
x₂=(3+1)/2=4/2=2

Answer 2

raspunsul mai jos.....