SOLUTION: subtract polynomials and simplify (-3r^2 +2r +4) - (7r^2 +4)=

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Question 181983: subtract polynomials and simplify (-3r^2 +2r +4) - (7r^2 +4)=
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
%28-3r%5E2+%2B2r+%2B4%29+-+%287r%5E2+%2B4%29 Start with the given expression.


-3r%5E2+%2B2r+%2B4-7r%5E2-4 Distribute


%28-3r%5E2-7r%5E2%29+%2B2r+%2B%284-4%29 Group like terms.


-10r%5E2%2B2r Combine like terms.


So %28-3r%5E2+%2B2r+%2B4%29+-+%287r%5E2+%2B4%29=-10r%5E2%2B2r