Answer
$x=${$0, \dfrac{8}{3}$}
Work Step by Step
Given: $(3x-4)^2=16$
Need to apply square root property.
$(3x-4)^2=16$
This implies that $3x-4=\pm \sqrt {16}$
or, $3x-4=\pm 4$
or, $x=\dfrac{4 - 4}{3},\dfrac{4 + 4}{3}$
Hence, our solution set is:
$x=${$0, \dfrac{8}{3}$}