Respostas

2014-03-12T20:37:22-03:00
p= 3+ \sqrt{2} \\  q= 2-\sqrt{2} \\  3+\sqrt{2} - 2-\sqrt{2} - 3 + \sqrt{2}

3+\sqrt{2} - 2 - \sqrt{2} = 1
1 - 3 +\sqrt{2} = -2+\sqrt{2}
sendo: \sqrt{2} ≈ 1,4
1,4 x 1,4 = 1,96

-2+\sqrt{2} => -2+1,4= -1,4