Question

5m²-3n²+2mn from 5mn-3m²+n²​

Answer 1

I am guessing you want me to subtract the expression...so here we go;-

$5m^{2} -3n^{2} + 2mn$ from $5mn-3m^{2} +n^{2}$

=$5m^{2} -3n^{2} + 2mn$ -( $5mn-3m^{2} +n^{2}$)

=$5m^{2} -3n^{2} + 2mn$ - $5mn+3m^{2} -n^{2}$

=$8m^{2} -4n^{2} -3mn$

Answer 2

Step-by-step explanation:

(5m+7n)+(3n-4m+2)+(2m-3mn-5)

=5m-7n+3n-4m+2+2m-3mn-5

=3m-4n-3mn-3

Hence the answer is 3m-4n-3mn-3