Question

4a) (3 + 4√2)²

a)44 + 12√2
b)34 - 12√2
c)41 + 24√2
d)12 - 24√4

Answer 1

Resposta:

Alternativa C

Explicação passo-a-passo:

$(3+4\sqrt{2}) ^{2} \\\\3^{2}+2.3.4\sqrt{2} +(4\sqrt{2}) ^{2} \\\\9+24\sqrt{2}+32\\ \\24\sqrt{2}+41$