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Australian AMC 2016 - Senior Question 8

AMC AUSTRALIA · Australian AMC 2016 - Senior

Question 8

The solution to the equation $\sqrt{x^2+1}=x+2$ is

$x=\frac{22}{7}$
$x=-\frac34$
$x=-\frac32$
$x=3$
no number x satisfies the equation