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Flavio Balistreri
Wiki User
∙ 13y agoy = x2 - 2
Set y = 0
0 = x2 - 2
0= x2 - (sq. root of 2)2
0 = [x - (sq. root of 2)][x + (sq. root of 2)]
x - (sq. root of 2) = 0 or x + (sq. root of 2) = 0
x = (sq. root of 2) or x = -(sq. root of 2)
Thus, the x-intercepts are +&- sq. root of 2.
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