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velikii [3]
3 years ago
11

PLLLLLLLLZZZZZZ help will give brainliest

Mathematics
1 answer:
Elodia [21]3 years ago
7 0

Answer:A. 3x^2-2x-1+9x+2x^2-3=5x^2+7x-4

B. 5x^3+4x^2-x-3-5x^2-7x+4=5x^3-x^2-8x+1

C. Polynomials are closed under addition and subtraction...

Step-by-step explanation:

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sladkih [1.3K]
For this equation first you should add +11 on both sides and the add -4/7w so you will have: 
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w = -77 :)))
i hope tis is helpful 
have a nice day 
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