The equation is .
Rewrite the equation in standard form:
\ (Add 16 to each side)
(Apply additive inverse property:
)
Graph the related function:
\Let .
.
Graph the related function .
The x-intercepts of the graph appear to be at ,so the solutions are
.
Check:
\To check, substitute in equation
.
(Substitute
)
(Evaluate powers:
)
(Multiply:
)
(Subtract:
)
The equation is true.
The solutions are .