Question

4x²-1

Answer 1

Please state your question clearly. Not everybody may understand what you are trying to say. Just making sure: Are you trying to solve this? Correct?

Answer 2

is this an algebra expression..do you plug something for x?

Answer 3

@Dinlovetter . I know that you are not used to this like I see your SmartScore. Just like I said above state your question clearly, so that way everyone can help you here. Good Luck!

Answer 4

agree

Answer 5

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Answer 6

Alright. So this involves a difference of two squares. Do you know what that is?

Answer 7

Please can you help me and do this problem for me 4x²-1

Answer 8

No I don't know what is that mean

Answer 9

An example will be easiest to show what this is. So, say you have x^2-9.
If you factor this, you need to have two variables that multiply to create x^2. You also need two numbers when multiplied will give you -9.
In a difference of two squares, you'll get something like this:
(a+b)(a-b)

So in the case of x^2-9, you'll get something like this:
(x+3)(x-3)
When you expand it, you'll get x^2 -3x +3x -9. Both of the 3x cancel out.

So for 4x^2-1, 2x will be your starting point.
(2x- __) (2x+ __)
What two numbers could you multiply to get 4x^2-9?

Check this as well:
http://www.regentsprep.org/regents/math/algebra/av6/Lfactps.htm

Answer 10

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Answer 11

I can't really text or anything, sorry >.<
Plus, it's not a good idea putting your phone # on the internet.

Answer 12

It is because that I can call you and thank you so much

Answer 13

Thanks for your help God bless you very much