Answer
{$\dfrac{-3+\sqrt{11}}{4},\dfrac{-3-\sqrt{11}}{4}$}
Work Step by Step
Given: $(x+\dfrac{3}{4})^2=\dfrac{11}{16}$
Apply The Square Root Property.
This can be written as: $(x+\dfrac{3}{4})=\sqrt{\dfrac{11}{16}}$
or, $(x+\dfrac{3}{4})=\pm \dfrac{\sqrt{11}}{4}$
or, $x=-\dfrac{3}{4}+\dfrac{\sqrt{11}}{4},-\dfrac{3}{4}-\dfrac{\sqrt{11}}{4}$
Hence, solution set is $x=${$\dfrac{-3+\sqrt{11}}{4},\dfrac{-3-\sqrt{11}}{4}$}