please explain it really well and step by step and don't use Excel.

a) Calculate the IRR of the following cash flows: $550,000 in year 0 ; $430,000 in year 1;$100,000 in year 2 ; and $200,000 in year 3 . Is the project acceptable if the cost of capital is 10% ? b) Now calculate the MIRR of the same cash flows assuming a reinvestment rate of 12%. Is the project acceptable or not acceptable under this methodology