Answer
$1\frac{1}{4}$
Work Step by Step
$(-\frac{1}{2})^2-(\frac{3}{4}-\frac{7}{4})\longrightarrow$ Solve equations in parentheses.
=$(-\frac{1}{2})^2-(-\frac{4}{4})\longrightarrow$ Simplify.
=$(-\frac{1}{2})^2-(-1)\longrightarrow$ Solve exponents.
=$(\frac{1}{4})-(-1)\longrightarrow$ Change subtraction of a negative to its additive inverse.
=$(\frac{1}{4})+1\longrightarrow$ Solve.
=$1\frac{1}{4}$