Write the Word or Phrase That Best Completes Each Statement $\frac { 2 } { \sqrt { 2 x + 1 } }$

Short Answer

Write the word or phrase that best completes each statement or answers the question.
-y = $\frac { 2 } { \sqrt { 2 x + 1 } }$ Enter your answer exactly as: $\frac { d y } { d x } = a ( \mathrm { P } ( \mathrm { x } ) ) ^ { \mathrm { b } }$ where P(x) is a polynomial in standard form. a, b reduced fractions or integers. No parentheses on coefficients or powers.