Solve the following equation by first writing the equation in the form ax^2 = c;

15+C^2 = 96

a. c = + 9

b. c=9

c. c = + 9.79

d. C = 9.79

Subtract 15 on both sides, and you are left with C^2 = 81. Take the square root of on both sides to get C by itself, and you get C = square root of 81. If you take the square root of 81, you should get an answer of 9, and that should be the final answer. So b will be the right answer