Recent content by leighflix

Thanks both of you! :smile:

Yea, that was what I was thinking. Simply just add similar to adding fractions, since they have the same denominator, just add both numerators.

In step 1 & 2, did he group factor? (2x + 1)(x + 1)^(-3/4) = (2x+1) / (x + 1)^(3/4) EDIT: OK no, he didn't group factor, he basically just added x and (x+1). I understand now, thanks.

I have no idea how (x + 1)^(1/4) = (x + 1)^(-3/4) * (x + 1) EDIT: Ok, I get how it is equilavent

http://imgur.com/RNsBBoO (image) Can someone elaborate as to how he factored this? The textbook provided nothing else about factoring algebraic expressions with fractions than this image.It avoided fractions in factoring like a plague I guess. I understand the 3rd step to put the (x + 1)^(3/4)...

Thanks, and a small side question: How do you create the fractions? (on this forum)

After quite a while of thinking about this, the only conclusion I can come up with is to simplify it. Say for example, 6 / √12 → 6√3 / √(12 ⋅ 3) → 6√3 / 6 → √3

I've been learning algebra for the past 2 years (in high school), not once have we ever had to rationalize a denominator in a radical expression. I am now relearning Algebra and Trig., what use is there? I mean, all you're doing is switching the numerator (rational) to the Denominator...

OK, thanks for the help!

So basically, if you were to mix two substances and they would always reveal about the same amount of concentration of the substances.

I've just recently started relearning chemistry. Forgive me for asking such a basic question, but my textbook doesn't use very practical examples with a detailed explanation. So a hetero and homo mixture can be classified as if there compositions (multiple substances) are blended or not. Let's...

I saw this through google and thought it would be helpful to a high school student like me. I am learning Chemistry, Physics, and Computer Science (Architecture atm). I hope i can find many answers to my questions here in the future. - Leigh