Here is the answer but basically the work you just plug in 6 for A, 12 for B, and 5 for C..into the quadratic formula and solve from there
Answer:
EASY the awnser is about 15
Answer: how come you don't know the answer what grade are you in
The third answer option is correct. sqrt(x) = x^(1/2). So sqrt(121) = 121^(1/2).