What is the difference of the polynomials?

Answer:
(B) mn+3
Rule of algebra: *INTEGERS*
like sign➡ add
unlike sign➡ subtract
Step-by-step explanation:
Because the m2n2 is got subtract by m and n that's why it bacames a constant mn.
Answer:
[tex](m^{2} n^{2} -7)-(mn+4)[/tex]
[tex]=m^{2} n^{2} -7-mn-4[/tex]
[tex]m^{2} n^{2} -mn-11[/tex]
Option C is your answer
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Hope it helps...
Have a great day!!