Answer:
See below
Step-by-step explanation:
[tex] (x + 15)^2 - 10 = 0\\
(x + 15)^2 = 10 \\
(x + 15) = \pm\sqrt {10} \\
x + 15 = \pm 3.16227766\\
x + 15 = \pm 3.16\\
x = \pm 3.16 - 15\\
x = 3.16 - 15 \: or \: x = - 3.16 - 15\\
x = - 11.84\: or \: x = - 18.16\\
lesser\: x = \boxed{-18.16}\\\\
greater\: x = \boxed{-11.84}\\\\[/tex]
