Question

use a suitable identify to get each of the following products:
full solution send kro​​

Answer 1

Answer:

question is not full there is something missing Check and post full pic of your question

Answer 2

Answer:

(3.1a-0.5)(3.1a+0.5)

(a+b)(a-b)=a²-b²

3.1a²-0.5²

9.61a²-0.25

Hope it helps you.....