Solve for the Specified Variable $$81 \left( a ^ { 2 } - b \right) + 11 = 7 F ; \text { for } a$$

question 20

Multiple Choice

Solve for the specified variable. Assume that all other variables are nonzero
- $$81 \left( a ^ { 2 } - b \right) + 11 = 7 F ; \text { for } a$$

• A) \(a = \pm \frac { \sqrt { 7 \mathrm {~F} + 81 \mathrm {~b} - 11 } } { 9 }\)
• B) \(a = \pm \frac { \sqrt { 7 F - 11 } } { 9 } + b\)
• C)\( a = \pm \frac { \sqrt { 7 F + b - 11 } } { 9 }\)
• D) \(a = \pm \frac { \sqrt { 7 F - b + 11 } } { 9 }\)

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