# Math Help - I Need Math Help Please :(

1. ## I Need Math Help Please :(

I Need help. Can you teach me how to be able to Expand simplify

2. Originally Posted by Mike16
I Need help. Can you teach me how to be able to simplify Eg.-(k+6)-(2+k)+(8+4k)
$-(k+6)-(2+h)+(8+4k)$

$-k-6-2-h+8+4k$

Order by variables (a + 2a - 3b + 4b + c + 2...)

$-h+4k - k + 6-2+8$

Add like variables, (e.g. 4a + 2a - 3a = 3a)

$3k-h+12$

3. Ok i think i got it... Can any 1 else Help with Expand and simplify?

4. Originally Posted by Mike16
I Need help. Can you teach me how to be able to Expand simplify

5. Originally Posted by Mike16
Well, in order to expand and simplify, you have to remember your properties. The property you would use in those instances would be the distributive property.

$4(2y-3)$

First distribute the 4. That means to multiply the 4 by 2y and then by -3.
$4*2y-4*3$

Now let's simplify.
$8y- 12$

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Now for the second example. This time we're going to break up the problem.
$-3(2y-2)+4(2y-1)$

Let's start off with $-3(2y-2)$.

First distribute the -3. That means to multiply the -3 by 2y and then by -2.
$-3*2y-3*-2$
This adds up to $-6y+6$.

Now let's move onto $4(2y-1)$.

First distribute the 4.
$4*2y -4*1$

This adds up to $8y-4$.

Now let's add both together, shall we?
$-6y+6+8y-4$

This equals
$2y+2$

6. thank you

7. Originally Posted by colby2152
...

$-h+4k - k + 6-2+8$

Add like variables, (e.g. 4a + 2a - 3a = 3a)

$3k-h$
Hi,

I don't want to pick at you but unfortunately you have forgotten to add 12:

$-h+4k - k + 6-2+8 = -h +3k +12$

8. Originally Posted by earboth
Hi,

I don't want to pick at you but unfortunately you have forgotten to add 12:

$-h+4k - k + 6-2+8 = -h +3k +12$
No offense taken... thank you earboth! I envisioned that six was negative instead of positive!