You're probably right. But I find that I learn differently than most people do, so I'd prefer to test it and find out myself. Anyway, if I find you're right it'll be very easy to switch to doing all the problems.
But what about that list (which was the real point of my post)? Are there any...
First of all, it does say "square root of x", not (x^2)^1/2, I just haven't figured out yet how to write that with a square root sign!
So according to what you're saying: If I have an equation, say x^2 = y, and I want to solve for x, which means taking the square of both sides, then I need to...
I am 21 and studying to be a psychologist. I am NOT studying to be a mathematician, or a physicist, or a scientist, but I am very interested in all those subjects. I find that I generally learn much better from reading (+ writing over what I've read) than I do from listening to a lecture. So I...
If x is negative then |x| = -x (for example, say x = -3, so |-3| = -(-3) = 3), because the absolute value of a number is always a positive number. But +-x refers to the number you get as a result of putting either a + or a - in front of x. So if x = -3, +-x could equal +(-3) OR -(-3). Only ONE...
I am using CliffsNotes QuickReview Algebra I (which by the way I find to be fantastic, except that it is very prone to typos) to review the algebra that I haven't learned in almost a decade. It says there that (x^2)^1/2 = |x|, but it also says that (x^2)^1/2 = +-x. But isn't it true that |x| >...