asked 11.4k views
4 votes
1. (10r+9)+(5r-7-r

2. 30x(-2x^2+7x-8)
3. (7x^2)(x^4)(-5x)

Please!









!!!!!!!!!!!!!!!!!!!!

1 Answer

3 votes
1)14r+2
2)-60x^3+210x^2-240x
3)-35x^7

answered
User Marlyyy
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7.8k points

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