Question

Решить.
$(3- sqrt{3} ^ {2})+(3+ sqrt{3} ^ {2})$

Answer 1

$(3- sqrt{3})^2+(3+ sqrt{3})^2= \ \ =3^2-2cdot3cdot sqrt{3}+( sqrt{3})^2+3^2+2cdot3cdot sqrt{3}+( sqrt{3})^2= \ \ =9-6 sqrt{3}+3+9+6 sqrt{3}+3=24$