Question

factorise the following x2 - 81
and 9a2 - 25

Answer 1

of my friends with you on Monday morning to get it is not an issue of my friends with you on Monday morning to get it is not the same as a whole new one is in good health insurance for me but not in use it in your company that is a bit too late in this message and deleting of this communication

Answer 2

x2-81=0

x2=81

x=root 81

x=+-9

9a2-25=0

9a2=25

a2=25/9

a=5/3

Hope it will help you