Solve the Quadratic Inequality $( 5 + 4 x ) ^ { 2 } \geq - 4$

question 381

Multiple Choice

Solve the quadratic inequality. Write the solution set in interval notation.
- $( 5 + 4 x ) ^ { 2 } \geq - 4$

• A) \(\left( - \infty , - \frac { 7 } { 4 } \right) \cup \left( - \frac { 3 } { 4 } , \infty \right)\)
• B) \(\varnothing\)
• C) \(\left[ - \frac { 7 } { 4 } , - \frac { 3 } { 4 } \right]\)
• D) \(( - \infty , \infty )\)