SOLUTION: Here is an equation i am trying to simplify: 4x^2-3x^2+5x-x^2-1 (where x is a variable and ^2 is an exponent of 2) i came up with 5x-1 as the simplified form. However, when

Algebra ->  Expressions -> SOLUTION: Here is an equation i am trying to simplify: 4x^2-3x^2+5x-x^2-1 (where x is a variable and ^2 is an exponent of 2) i came up with 5x-1 as the simplified form. However, when       Log On


   

Question 253904: Here is an equation i am trying to simplify:
4x^2-3x^2+5x-x^2-1 (where x is a variable and ^2 is an exponent of 2)
i came up with 5x-1 as the simplified form. However, when i substitute a number for x the two equations don't equal the same thing.
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
4x%5E2-3x%5E2%2B5x-x%5E2-1 Start with the given expression.


%284x%5E2-3x%5E2-x%5E2%29%2B5x-1 Group like terms.


5x-1 Combine like terms.


So 4x%5E2-3x%5E2%2B5x-x%5E2-1=5x-1


So you are correct.