Question

Se $<var>p= 3 + \sqrt{2}</var>$ e $<var>q = 3 - \sqrt{2}</var>$ , calcule o valor de p . q - p

Answer 1

(3+√2)*(3-√2)-(3+√2)

9-3√2+3√2-√4-(3+√2)

9-2(3+√2)

7(3+√2)..............................Já ta fatorado

21+7√2