Question

Subtract (i)9m²n - 8n from 16m²n + 14n
ii)a² - b² from a² + b²

Answer 1

Answer:

i. 7m2n+ 22n

ii. 2b^2

Step-by-step explanation:

i. 16m2n + 14n - ( 9m2n - 8n )

= 16m2n + 14n - 9m2n + 8n

= 16m2n - 9m2n + 14n + 8n

= 7m2n + 22n

ii. a^2 + b^2 - ( a^2 - b^2 )

= a^2 + b^2 - a^2 + b^2

= a^2 - a^2 + b^2 + b^2

= 2b^2