1. Un tercio de la diferencia de dos números es 11 y los 4/9 del mayor equivale a los 3/4 del menor. Halla los números.

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square

answer is b.

15

i got this one as well.

answers

m = 0

n = 0.

explanation

most of the values are negative. the one that are not negative are the excluded   values.

these values are: m = 0

                              n = 0.