Math, asked by innocentkirat05, 7 months ago

add the following 3mn -m2+n2, m2-4mn and-6mn-9 step by step explanation

Answers

Answered by harsharajkashyap

1

Step-by-step explanation:

3mn -m2+n2+ (m2-4mn)+(-6mn-9)

=3mn-2m+2n +2m-4mn -6mn-9

=3mn-4mn-6mn -2m+2m -2n+2n -9

= -7mn -9

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