Solve the Equation by Completing the Square $$4 \mathrm {~d} ^ { 2 } + 16 \mathrm {~d} + 15 = 0$$

question 90

Multiple Choice

Solve the equation by completing the square.
- $$4 \mathrm {~d} ^ { 2 } + 16 \mathrm {~d} + 15 = 0$$

• A) \(- \frac { 5 } { 2 } , - \frac { 3 } { 2 }\)
• B) \(- \frac { 2 } { 5 } , - \frac { 3 } { 2 }\)
• C) \(\frac { 5 } { 2 } , \frac { 3 } { 2 }\)
• D) \(\frac { 2 } { 5 } , \frac { 2 } { 3 }\)

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