September 20th, 2012, 05:18 AM  #1 
Senior Member Joined: Oct 2009 Posts: 895 Thanks: 1  2X  2x^2 = ?
Hi 1 = 2X  2x^2 = ? 2 = 2X + 2x^2 = ? 3 = 2X x 2x^2 = ? I face problem in power ? 1 = 2x^1 2 = 4x^3 3 = 4x2 
September 21st, 2012, 12:23 AM  #2 
Member Joined: May 2012 Posts: 78 Thanks: 0  Re: 2X  2x^2 = ?
May you explain your problem?

September 21st, 2012, 04:05 AM  #3 
Global Moderator Joined: Dec 2006 Posts: 20,471 Thanks: 2038 
For terms that are added or subtracted, identifying what they have in common allows you to factorize the overall expression. 2x  2x² = 2x(1)  2x(x) = 2x(1  x) 2x + 2x² = 2x(1) + 2x(x) = 2x(1 + x) To combine powers of x that are multiplied, you add the exponents, so the product of 2x and 2x² is , which equals 4x³. 
September 23rd, 2012, 04:04 PM  #4  
Math Team Joined: Sep 2007 Posts: 2,409 Thanks: 6  Re: 2X  2x^2 = ? Quote:
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It would have helped if you had told us exactly what the problems asked you to do instead of just handing us expressions with no instructions!  