1953 AMC 12 Question 23
AMC12 · 1953 AMC 12
The equation $\sqrt{x+10}-\dfrac6{\sqrt{x+10}}=5$ has:
an extraneous root between $-5$ and $-1$
an extraneous root between $-10$ and
$-6$
a true root between $20$ and $25$
two true roots
two extraneous roots