Requesting some Maths help please

[grimFandingo]

So I am brushing up my maths skills, ready for my CompSci degree next year. I am able to multiply algebraic expressions and factorize them and all of that good stuff, however there is one part that is confusing me.

 

That would be powers(or indices)

 

Take the equation

 

Factorize:

 

2a²b³ + 3a³b² - 6a²b² =

 

I know the answer is:

 

a²b²(2ab + 3a - 6)

 

I understand most of except the powers. Why is a²b² * 2ab = 2a²b³, I don't understand where the ³ comes from?

 

What is the rule with powers when multiplying equations and factorizing.

 

Any help would be great

[qwertywarrior]

read it as

Requesting some Meth help please

[alpenwasser]

Factorize:

2a²b³ + 3a³b² - 6a²b² =

I know the answer is:

a²b²(2ab + 3a - 6)

I understand most of except the powers. Why is a²b² * 2ab = 2a²b³, I don't understand where the ³ comes from?

 

What is the rule with powers when multiplying equations and factorizing.

There is actually an error in that solution, it should be:

a²b²(2b+3a-6)

Powers get added when multiplying their bases, so:

a²b²*2b=2a²b²⁺¹=2a²b³

[rhyseyness]

a^y*a^x=a^y+x

 

(a^y)^x=a^xy

 

a²b² * 2ab = 2a³b³

 

not 2a²b³

 

The cubed terms comes from a²*a, and b²*b

 

Hope this helps

[Lukiose]

So I am brushing up my maths skills, ready for my CompSci degree next year. I am able to multiply algebraic expressions and factorize them and all of that good stuff, however there is one part that is confusing me.

 

That would be powers(or indices)

 

Take the equation

 

Factorize:

 

2a²b³ + 3a³b² - 6a²b² =

 

I know the answer is:

 

a²b²(2ab + 3a - 6)

 

I understand most of except the powers. Why is a²b² * 2ab = 2a²b³, I don't understand where the ³ comes from?

 

What is the rule with powers when multiplying equations and factorizing.

 

Any help would be great

There's your mistake.

[grimFandingo]

There is actually an error in that solution, it should be:

a²b²(2b+3a-6)

Powers get added when multiplying their bases, so:

a²b²*2b=2a²b²⁺¹=2a²b³

You are correct, I had that answer I just wrote it wrong in the post.

 

Anyway thanks for clearing that up for me, I understand now. I  really appreciate your help.

[grimFandingo]

a^y*a^x=a^y+x

 

(a^y)^x=a^xy

 

a²b² * 2ab = 2a³b³

 

not 2a²b³

 

The cubed terms comes from a²*a, and b²*b

 

Hope this helps

It did, thank you.

[grimFandingo]

read it as

Requesting some Meth help please

I'm experienced in the meth game. I have been around long enough to no longer need help regarding meth.

[rhyseyness]

@grimFandingo

 

No problem! Anytime (I love maths, feel free to PM me with any problems).

Good luck with your degree!

[tedjani]

this is my brain right now

[Goldilock]

What grade are you, if I may ask ?

[grimFandingo]

What grade are you, if I may ask ?

I am from the UK. I am in year 13(second year of college) and am going to university in September 2014. I am 18, I am not sure what the US equivalent of that is. Why?

[rhyseyness]

@grimFandingo

 

Guessing you didn't do A-levels?

Studying computer science at college?

[grimFandingo]

@grimFandingo

 

Guessing you didn't do A-levels?

Studying computer science at college?

No I do A-Levels, just non mathematics related subjects, so my maths is a bit rusty. I am doing Computing, Physics and English.

[rhyseyness]

@grimFandingo   (sorry can't quote whilst at work)

 

Ah I see. I just wondered as I did maths, physics, geography and economics last year... or year before last.

I found the maths involved in physics was pretty in depth, but I suppose you don't really do the pure mathematical stuff like factorising.

Was going to do aerospace engineering at university, but didn't fancy the debt, so doing an apprenticeship instead (at BAE Systems).

Just interested to see what route other people take into a similar industry in this country

Good luck with your A-Levels, and of course your degree

[grimFandingo]

@grimFandingo   (sorry can't quote whilst at work)

 

Ah I see. I just wondered as I did maths, physics, geography and economics last year... or year before last.

I found the maths involved in physics was pretty in depth, but I suppose you don't really do the pure mathematical stuff like factorising.

Was going to do aerospace engineering at university, but didn't fancy the debt, so doing an apprenticeship instead (at BAE Systems).

Just interested to see what route other people take into a similar industry in this country

Good luck with your A-Levels, and of course your degree

Yeah Physics has a lot of formula work, but not pure mathematics. That apprenticeship at BAE looks really good, you did well getting that. Good luck with your job. 

[rhyseyness]

@grimFandingo

 

Thanks very much, I'd recommend it to anyone

All the best

Take care

[Zonked]

@grimFandingo

 

Thanks very much, I'd recommend it to anyone

All the best

Take care

I worked at BAE for a year as part of my degree. I loved it there, I would have loved to stay there if I didn't decide to do my Master's Degree.

 

I hope all goes well for you.

[rhyseyness]

@Zonked

 

Yea we have plenty of people here who work here during their degree.

Good work doing your masters, that's really impressive!

Sounds like you've got your life right on track

 

Thank you very much

[Goldilock]

I am from the UK. I am in year 13(second year of college) and am going to university in September 2014. I am 18, I am not sure what the US equivalent of that is. Why?

 

It's just the question is something that i found when I am 12 years old.