Will you please help me with this math problem?
I have a bunch of algebra problems where you have to solve for a variable in multi-variable equations. I got one that says: A=2(pi)r + 2(pi)r^2 (pi means the pi symbol that my keyboard doesnt have) i am having SERIOUS trouble because it seems like no matter WHAT i do to the equation, I can't separate the Rs and get them together. (im supposed to just solve for r, the answer will be variables). How do you manipulate this enough to solve for r alone? all help is appreciated
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Hi
First of all, to get the pi symbol, (1) hold down the ALT key on your keyboard (2) tap 2 2 7 on the numeric keypad (3) release the ALT key.
The result is π
When you have to solve something in the form of A = 2πr + 2πr², the general approach is to factor the expression into a multiplication of simpler terms.
As an example, A = 2πr + 2πr² can be expressed as
A = 2πr(1 + r)
If you want to post a specific problem of this type, I'll be happy to provide more detail.
I'll check later for any response.
It's a matter of algebra...there are many online resources for this.
post your problems pls
you have to learn how to factor expressions -- simple as that.
you just factor, and poof!
you should have covered this in class....pay attention