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Simplifying Algebra Expressions

fliss1992

Never been a big fan of Algebra, so hopefully someone can help me :smile:

I've been given a couple of expressions I need to simplify...

h² + h²

g³+ g

y⁴
y^{2 ( there is a line between these two.)}m^{2 +}2m^{2 + 4}m²

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Reply 1

James179

First one there are two lots of h^2, 2 lots of x is 2x so 2 lots of h^2 is...?Second one, take out a common factor of gThird one, I take it that is y^4/y^2, subtract the powers using the rule that

\dfrac{x^{m}}{x^{n}}=x^{m-n}

4th one is another case of simply adding terms, 1 lot of m^2 plus 2 lots of m^2 plus 4 lots of m^2, how many m^2 do you have in total?

(edited 9 years ago)

Reply 2

Notnek

Original post by fliss1992

Never been a big fan of Algebra, so hopefully someone can help me :smile:

I've been given a couple of expressions I need to simplify...

h² + h²

g³+ g

y⁴
y^{2 ( there is a line between these two.)}m^{2 +}2m^{2 + 4}m²

1. You have one lot of something plus another lot of something, the something being

h^2

. So what do you have? If you're still not sure, what does h + h simplify to? A similar thing happens here.

2. This doesn't simplify but you can factorise but I don't think that's what you're doing.

3. Maybe you'll know what to do if the division symbol is used:

y^4 \div y^2

. Have you seen something like this before?

4. You have one lot of something plus two lots of something plus four lots of something...

(edited 9 years ago)

Reply 3

fliss1992

1 = h^{4

2 = ?

3 =}y²

4 = m^{10

correct? apart from number 2}

Reply 4

fliss1992

Original post by notnek

1. You have one lot of something plus another lot of something, the something being

h^2

y^4 \div y^2

. Have you seen something like this before?

4. You have one lot of something plus two lots of something plus four lots of something...

1 = h^{4

2 = ?

3 =}y²

4 = m^{10

correct? apart from number 2}

Reply 5

TenOfThem

Original post by fliss1992

1 = h^{4

2 = ?

3 =}y²

4 = m^{10

correct? apart from number 2}

1 is wrong as you were meant to ad and you multiplied

q + q = 2q

blob + blob = 2blob

Similar to Q4 which is wrong for the same reason

Reply 6

fliss1992

Original post by TenOfThem

1 is wrong as you were meant to ad and you multiplied

q + q = 2q

blob + blob = 2blob

Similar to Q4 which is wrong for the same reason

your confusing me completely?

first of all what is blob and q + q?

Reply 7

TenOfThem

Original post by fliss1992

your confusing me completely?

first of all what is blob and q + q?

anything + anything = 2anything

Reply 8

fliss1992

Original post by TenOfThem

anything + anything = 2anything

your seriously not helping!

Reply 9

TenOfThem

Original post by fliss1992

your seriously not helping!

Reply 10

fliss1992

why do you post if your just going to annoy people and not help? if you don't want to help then don't post!!!

Reply 11

TenOfThem

Original post by fliss1992

why do you post if your just going to annoy people and not help? if you don't want to help then don't post!!!

How extremely rude of you

I have posted two perfectly good posts trying to show you how to do Q1

You did not understand - that is hardly my fault

Reply 12

fliss1992

how have you been trying to help and giving good answers? your saying blob this blob that and I have no idea what your on about!

A fight ensues.

Perhaps you should reread your textbook/notes/consult other people on your course.

Reply 15

Galileo Galilei

I am confused as to why there is a power at the front of m²

Reply 16

JAIYEKO

According to my calculations, 80% of you's are incorrect

1) = 2(h^2)
2) = g(1+g^2)

Reply 17

Notnek

Original post by fliss1992

why do you post if your just going to annoy people and not help? if you don't want to help then don't post!!!

Tenofthem's posts were perfect to help you understand your mistake. The fact that you didn't understand it was your fault and not hers. Your reply was unnecessary and rude.

You need to simplify

h^2 + h^2

. Since you're having difficulty with

h^2

, let's look at different variables:

x + x = 2x
h + h = 2h
blob + blob = 2blob
anything + anything = 2anything

Can you see what we're trying to show you?

So what's

h^2 + h^2

Reply 18

fliss1992

well I was told to add so it would be h4?

I've never done algebra before and I'm teaching myself so it's not an option to consult a tutor..

Reply 19

Hype en Ecosse

Original post by fliss1992

well I was told to add so it would be h4?

I've never done algebra before and I'm teaching myself so it's not an option to consult a tutor..

h^2 + h^2 = 2h^2

- this is the answer notnek and TenOfThem were trying to lead you towards, and there's no need to be rude to them.

If you have one apple + one apple, you get two apples. Exactly the same way as if you have one h + one h = 2h, and one h² + one h² = 2h².

The only time you add powers together (the number above the letters) is when you multiply. So