# Math Help - Factor or Prime?

1. ## Factor or Prime?

hello,
quick question:

100-81h^2

can it be factor completely or is it prime?
i couldn't so it must be prime correct?

2. Hello,

Originally Posted by subzero06
hello,
quick question:

100-81h^2

can it be factor completely or is it prime?
i couldn't so it must be prime correct?
100-81h²=10²-9²h²=10²-(9h)²

What do you conclude ?

3. Originally Posted by Moo
Hello,

100-81h²=10²-9²h²=10²-(9h)²

What do you conclude ?
ha!
and i couldn't factor it