Question

Subtract the following

Answer 1

Answer:

2n^2+3m^2-7mn+5-(2m^2+3n^2-5mn+7)

=2n^2+3m^2-7mn+5-3m^2-3n^2+5mn-7

=2n^2-3n^2+3m^2-3m^2-7mn+5mn+5-7

= -n^2-2mn-2

Answer 2

Answer:

m² - n² - 2mn - 2

Step-by-step explanation:

2n² + 3m² - 7mn + 5 - (2m² + 3n² - 5mn + 7)

2n² + 3m² - 7mn + 5 - 2m² - 3n² + 5mn - 7

2n² - 3n² + 3m² - 2m² - 7mn + 5mn +5 -7

m² - n² - 2mn - 2

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