Monday

July 28, 2014

July 28, 2014

Posted by **Student** on Friday, March 28, 2014 at 4:38pm.

1. v^2 + v - 12/ v^2 + 6v + 8 divided by 2v - 6/ v +2

2. 2/ b-2 = b/ b^2 - 3b +2 + b/ 2b - 2

3. 1/ x-2 + 2x/ (x-2)(x-8) = x/ 2(x-8)

4. (m^2 + 2m + 1/ m^3 + 3m^2 + 3m +1 (m^2/m - 3m/3)

Thanks!

- Algebra -
**Steve**, Friday, March 28, 2014 at 4:42pmJust as in the previous two posts, you need to factor the trinomials and then cancel factors which occur in the top and bottom.

Have you no ideas at all on factoring these?

Or multiplying by the GCD to clear fractions?

- Algebra -
**Student**, Friday, March 28, 2014 at 5:44pmFor the first one, I can kinda see how I could factor v^2 + v - 12.. Would it look something like 2(v -6)? Which is like the numerator on the other side.

- Algebra -
**Student**, Friday, March 28, 2014 at 5:49pmIn the last one, I tried just cancelling out factors and got 2m^2/12m^3? Is that close, or no?

- Algebra -
**Steve**, Friday, March 28, 2014 at 5:54pmwell, 2(v-6) = 2v-12

Guess that's not it, eh?

How about (v+4)(v-3)

You need to find two numbers of opposite sign, which multiply to -12 and add up to +1.

On the last one,

(m^2 + 2m + 1/ m^3 + 3m^2 + 3m +1 (m^2/m - 3m/3)

unless you can factor the polynomials, there's nothing to cancel. You can't just toss away terms. What you have is

(m+1)^2 / (m+1)^3 = 1/(m+1)

m^2/m = m

3m/3 = m

m-m = 0

Not sure how those two are stitched together, if they are.

Any luck on the others?

- Algebra -
**Student**, Friday, March 28, 2014 at 6:07pmNo... I'm confused. Is this going to be useful later in life?

- Algebra -
**Steve**, Friday, March 28, 2014 at 7:05pmOnly you will know that.

It's actually surprising how often basic math skills come in handy.

Other than that, the mental skills developed when solving problems are definitely useful later in life, no matter the field of endeavor.

Now, if you plan to find a sugar daddy/mama and be kept in luxury, maybe not so much... :-)

Sounds like you could profit from some in-person tutoring for a while. Like anything else, math becomes more enjoyable the more familiar you are with it. Think of something you like to do. You probably spend lots of time doing it, because it's fun and easy. That was always math for me. Even when it was not easy, it was fun, and I knew I'd get it one day.

- Algebra -
**Student**, Friday, March 28, 2014 at 7:45pmIt's not fun for me. It's stressful, and it takes a lot of time. Time I could spend on American literature, History, or learning French. Your sugar mama/daddy joke is funny, but I don't see where these equations and expressions will fit into my life. I'm tired of having stuff crammed down my throat just so that the tests can be passed and then forgotten. I'm tired of teachers saying that the reason we learn this material is because "the state tells us to". You only get so much life and I'm kinda sick of wasting mine.

- Algebra -
**Steve**, Saturday, March 29, 2014 at 12:25amIf Literature, history and French are your life loves, then algebra probably will not be a great part of your life. But, life consists of a wide variety of experiences, and I guarantee you that some basic math know-how (yes, even including algebra) will make things easier. So, tough out the minimum requirements, because they really are the minimum skills you will need to work through life's problems.

No, really.

Stop laughing!!

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