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Svetllana [295]
3 years ago
15

What is the difference of the polynomials [m²n²-7]-(mn+4)

Mathematics
1 answer:
AleksAgata [21]3 years ago
5 0
You can do addition and substraction operations with polynomials similarly as with simple real numbers.


First of all you have to open brackets and then you can add numbers (-7-4=-11). Then the result is following:
(m^2n^2-7)-(mn+4) =m^2n^2-7-mn-4=m^2n^2-mn-11
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Devaughn is 15 years younger than Sydney. The sum of their ages is 37 . What is Sydney's age?
posledela
Hi,
Let Sydney's age be x.
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x+(x-15)=37
x+x-15=37
2x-15=37
2x=37+15
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Hope this Helps you.
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Step-by-step explanation:

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