Question

what is to be subtracted from 5m²-7m+12 to get -7m²+m-5?​

Answer 1

Rearranging the terms, we have 12m 2 - 4m 2 +5m - 9m - 7m + 10= (12 - 4)m 2 + (5 - 9 - 7)m + 10= 8m 2 + (-4 - 7)m + 10=8m 2 - 11m + 10

Answer 2

Answer:

5m²-7m+12 - (-7m²+m-5)

=5m²-7m+12 +7m²-m+6

=12m²-8m+18

hope it helps..