Question

-m2+5mn from 4m2-3mn+8​

Answer 1

step by step explanation

-m^2+5mn from 4m^2-3mn+8

=4m^2-3mn+8-(-1)m^2+5mn

=4m^2-3mn+8+1m^2+5mn

=4m^2+1m^2-3mn+5mn+8

=(4+1)m^2-(3-5)mn+8

=5m^2-2mn+8(ans)

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