The answer to the question above is the last one. Because when x+5 is expanded.
It will be
x^2 + 10x + 25 = 1
Then, if you transpose the 1
It will be a negative which will result to
x^2 + 10x + 25 -1 = 0
and it leads to the x^2 + 10x +24 = 0
It will take 5 months and the payments will be as follows:
Month 1: $375 to Mini and $3.15 to Murk
Month 2: $375 to Mini and $3.15 to Murk
Month 3: $165.58 to Mini and $209.42 to Murk
Month 4: $375 to Murk
Month 5: $87.36 to Murk