SOLUTION: add or subtract as indicated: (7r³ + rs - 5r² ) - (2r³ - 3rs + r²)

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Question 311346: add or subtract as indicated:
(7r³ + rs - 5r² ) - (2r³ - 3rs + r²)
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
Do it term by term...combining like terms...
(7r³ + rs - 5r² ) - (2r³ - 3rs + r²) =
(7r³ - 2r³) + (rs - (-3rs)) + (-5r² - r²)=
5r³ + 4rs - 6r²