Question 222101: I am having trouble solving this problem. 3/4 x^3 + 4x^2 - x^3 + 7. I have never takeg algebra before and this problem is giving me a fit. Any help would be appreciated.
Answer by rapaljer(4671)   (Show Source):
You can put this solution on YOUR website! You have to combine like terms, which means terms with the same variables raised to the same powers. You can combine the terms that contain x^3. You have 3/4 x^3 - 1x^3, which would be a total of -1/4 x^3. The rest all stays the same. Write the final answer this way:
-1/4 x^3 +4x^2 + 7
For additional explanation on the topic Combining Like Terms, please see my own website. Do a "Bing" search for my last name "Rapalje". Look for "Rapalje Homepage" near the top of the search list. On my Homepage near the top, look for the link "Basic, Intermediate and College Algebra: One Step at a Time." Choose "Basic Algebra", and look in Chapter 1 for Sections 1.05 and 1.06. In these sections, you will find my own non-traditional explanations, that my own students all said were a LOT easier to understand than traditional textbooks. See also the corresponding "MATH IN LIVING COLOR" pages in which problems are solved IN COLOR!
R^2
Dr. Robert J. Rapalje, Retired
Seminole State College of Florida
Altamonte Springs Campus
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