How Much ALGEBRA do you know? Let’s find out….Quiz #1

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I have been told by psychiatrists and psychologists that math skills decline after 45. Probably true to some extent. I’m 72 and struggled with proofs in discrete math last year. So it’s good to find a way to stay sharp- like this

paysonbenefield

I have a doctorate degree in theology. Two years ago I tried to learn basic algebra, and it gave me a headache that lasted two days at least. Maybe it was because I tried too hard. In any case, I think it proves that there are neurotransmitters in our brains that, because of lack of use, will experience lots of strain when we try to fire them up again. This is one more reason why we need to use the parts of our brains that are dormant. I'm now 78 years of age, and most likely the study of algebra will prevent senile dementia and/or Alzheimer's. I love the challenge. But I need to start at as low a level as possible in order to make a minimum headway. I highly admire your teaching skills.

charlescarpenter

I am 60 with a physics degree and I got them right also, without using paper.

stephenjackson

For the last problem, I forgot the addition rule, but remembered that a negative exponent means take the reciprocal. So x⁶ / x⁶ = 1.

Sometimes, in math, you may forget the "official" way to do things, but as long as you can still figure out the answer, you did it well, because you _understood_ it. :)

Nerketur

Great refresher. Just trying to keep math fresh to ward of mental decline.

lonnieporter

The first problem would be great to introduce asymptotes.

mr.mxyzptlks

Hello, I’m trying to figure where to even being. I’ve been out of school for over 20 years and honestly have no clue where to even begin. I need to get my GED. But it’s been so long that I need help on what’s the best approach or where to begin. Thank you for your time.

TRMULANT

Yey I got it all right doubtful in number 2 though because it has no solution but after checking concluded no solution. Thanks alot

jackionendino

4:20 "let's get to our problems here"

Ijis

Im 16 doing pre algebra. Idk why but math is so hard for me to do. Yeah i know basic stuff like multiplication division exponents and basic like measurements and stuff but like other stuff its very very hard for me to learn.

milesbuiltdis

1) For f(x)=(2x)/(x-1), the domain is all Real numbers and x≠1.

2)
y=3x+1
2y-6x=4

2(3x+1)-6x=4
6x+2-6x=4
2≠4
No Solution

3)
(x^2)^-3•x^6
x^-6•x^6
x^0
1 ✓

ChavoMysterio

This video is 7 minutes too long. Take out the first 7 minutes where you talk about how great you are and all the good things you are doing and just work the problems.

bigc