Could somebody please explain the problem how this is solved? https://www. wolframalpha. com/input/?i2d=true&i=%5C%2840% 29Divide%5BPower%5B2%2C-5%5D%2C3%5D %5C%2841%29%5C%2840%29Divide%5BPowe r%5B2%2C4%5D%2C3%5D%5C%2841%29 Please be as detailed as possible. Thank you!