multiply (2�ã7-5�ã3)(8�ã7-5�ã3)

Answer 1

Please type your subject in the School Subject box. Any other words, including obscure abbreviations, are likely to delay responses from a teacher who knows that subject well.

Answer 2

what does the ~ over the a mean?

does '2a7' mean 2a^7 ('a' to the 7th power) ?

Answer 3

that's means square root

Answer 4

square root of ?

'2a7' means?

does it mean 2(sqrt7)?