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solniwko [45]
3 years ago
6

I need some help with this!

Mathematics
1 answer:
Dimas [21]3 years ago
3 0

(-x³ +3x +4) -(2x³ +7x² -9) = -x³ +3x +4 -2x³ -7x² +9 . . . . eliminate parentheses

= x³(-1-2) +x²(-7) +x(3) +(4+9)

= -3x³ -7x² +3x +13 . . . matches the second choice.

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6 0
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Hope This Helped :) 



4 0
3 years ago
2. Determine the point of intersection for the equations below without graphing. Show all work.
Murljashka [212]
I’m pretty sure you would have to make them equal
1. 3x -10=7x+14
2. Add 10 to both sides
3. 3x=7x+24
4. Subtract the variable ( 7x ) from both sides
5. -4x=24
6. Divide -4/24
I hope I did it right let me know if any errors
8 0
3 years ago
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