Tuesday

September 23, 2014

September 23, 2014

Posted by **B.B.** on Wednesday, April 21, 2010 at 10:14am.

Add. (x^9-2)+(x^9+2).

Here is what I did:

(x+x)^9+(-2+2)

2x^9+0

Is this correct? If not could you please explain it to me?

Thanks.

- Math -
**PsyDAG**, Wednesday, April 21, 2010 at 10:47amRight! However, you do not need to include "+0."

**Answer this Question**

**Related Questions**

Math - Could someone please explain this problem to me. I need to factor and ...

math - Saying that 4<(sq.root of x)<9 is equivalent to saying what about ...

Math - Did I do this problem right? Divide. x^2+4x-48/x+8 Here is how I solved ...

Math - Can someone please help with this? I am helping my niece with this ...

Math - Add parentheses so that the equation is correct.... 7+9x3-1=25 Will ...

Math - 8*2sq+7*(4+1)= ? Can someone explain to me what to after the parenthesis...

math, beginning algebra - how do i solve the following equations. Problem # 1 3x...

math help please - I am having a hard time understanding recprocial with ...

4th grade math - Please help solved the below problem. Explain in words how to ...

Math - can you please check this problem for me, and if I happen to get it wrong...