Question

What should be subtracted from 1 + m - m² to get 2m + m²​

Answer 1

Answer:

1+3m-m2

Step-by-step explanation:

hope it's helpful for you

Answer 2

Answer:

$1 - m - 2m ^{2}$

Step-by-step explanation:

$1 + m - m ^{2} - x = 2m + m ^{2} \\ x = 1 + m - m ^{2} - (2m + m ^{2}) \\ x = 1 + m - m^{2} - 2m - m ^{2} \\ x = 1 - m - 2m ^{2}$