Question

subtract:5m³ – 3m² + 7m – 8 from 8m³-9m² +5m -2​

Answer 1

8m³ -9m² +5m. -2

( - ) 5m³ – 3m² + 7m – 8

-2m2 -6m +2m + 6

This is your answer

Answer 2

(8m cube - 9m square+5 m) - (5m cube - 3 m square +7m)

(8m cube - 5m cube)+(-9m square+3m square)+(5m-7m)

(3m cube)+(-6m square)+(-2m)

3m cube-6m square-2m