mandilynn22
16.07.2019 •
Mathematics
What is the additive inverse of the polynomials -7y²+x²y-3xy-7x²
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Ответ:
Solution:
We only have to multiply the polynmial by minus sign, and this changes the signs of all terms:
-(-7y²+x²y-3xy-7x²)=7y²-x²y+3xy+7x²
Ответ: