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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!

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

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Farid S. | Experienced Math TutorExperienced Math Tutor
4.8 4.8 (32 lesson ratings) (32)
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 (x2-x3).  This gives 5x3 - 5x4 - 2x2 + 2x3 = -5x4 + 7x3 - 2x
Now, take (-5x4 + 7x3 - 2x2) and subtract (2x2 - 3x - 4).  This gives -5x4 + 7x3 - 2x2 - 2x2 + 3x + 4
Collecting like terms, we get -5x4 + 7x3 - 4x2 + 3x + 4.