Sophia Algebra

[rachel83az]

I think that there are multiple typos in this course that are making it more difficult for me to understand what's going on. Since I haven't needed to do academic algebra in a while, I thought it was just me and my reading comprehension. But I think it's that + unclear explanations (in some cases) + typos. Example:

Whenever we are working with the exponents, taking the appropriate radical will always cancel out the exponent operation. That is to say, if a number is raised to the power of a, we can cancel out the exponent by taking the resulting value and taking the a-th root of the result. This is the same as raising the the resulting number to a fractional exponent. For example, if we have 74, in order to cancel out the exponent 4 we would have to take the 4th root of 74 which is the same as raising 74 to the ¼ power. This is shown below:

74 is clearly not the same as 7 to the power of 4, though I can see how that could be a typo. At this rate, I may wind up getting the math books from Humble Bundle and using those to study for Sophia.