Question

Cât face (√2+1) la a 2?

Answer 1

2+1=3 Sper ca te-am ajutat

Answer 2

Aplicam formula: $(a+b)^{2} = a^{2} +2ab+ b^{2}$

$(\sqrt{2}+1) ^{2} = (\sqrt{2}) ^{2} + 2 \sqrt{2} *1 + 1^{2} = 2+2 \sqrt{2} + 1 = 3+2 \sqrt{2}$