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Novosadov
[1.4K]
3 years ago
13
PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!
Mathematics
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1
answer:
Lorico
[155]
3 years ago
5
0
1. -5x^10, because 4-9 is 5 and you don't do anything do the exponents when subtracting.
2. 9x^2-12x-6, quadratic trinomial
3. 5.5x^2+5.5x^2-9.2x+9.9x+9.6+1.3=
11x^2+0.7x+8.2
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