I know how to do some algebra equations but not all, i think this is a problem because im a freshmen in highschool and im not catching up in class

## Im a freshmen in highschool, I dont know how to do some algebra equations like (5x-2) ( x2-x3 )-(2x2-3x-4) someone please help me!

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# 1 Answer

Hi John,

To solve this problem, first thing you'll want to do is multiply out the first set of parenthesis. So, you want to multiply (5x-2) times (x

^{2}-x^{3}). This gives 5x^{3}- 5x^{4}- 2x^{2}+ 2x^{3 = }-5x^{4}+ 7x^{3}- 2x^{2 }Now, take (-5x

^{4}+ 7x^{3}- 2x^{2}) and subtract (2x^{2}- 3x - 4). This gives -5x^{4}+ 7x^{3}- 2x^{2}- 2x^{2}+ 3x + 4Collecting like terms, we get -5x

^{4}+ 7x^{3}- 4x^{2}+ 3x + 4.