tatyanawilkinson tatyanawilkinson

04-02-2021
Mathematics

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Which expression is equivalent to (10 +7r−r2)+(−6r2−18+5r)

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fn8x6v2jmt fn8x6v2jmt

04-02-2021

Answer: -7r^2+12r-8
Explanation;
1. Combine -r^2 and -6r^2 to get -7r^2
2. Subtract 18 from 10 to get -8
3. Combine 7r and 5r to get 12r

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