Question

(3+√2) al cubo.
cuanto da?

Answer 1

$(3+ \sqrt{2})^{2} = 3^{2} +2(3) (\sqrt{2})+ (\sqrt{2})^{2}$
                               =$9+6\sqrt{2}+2$
                               =11+6$\sqrt{2}$

Answer 2

$3 ^{3}+3(3^{2} * \sqrt{2}) +3(3^ * \sqrt{2}^{2} )+ \sqrt{2}^{3}$