Question

factorize 16a4 - 97a2b2 + 81b4​

Answer 1

Step-by-step explanation:

16a^4 - 97a^2b^2 + 81b^4

= 16a^4 - 72a^2b^2 + 81b^4 - 25a^2b^2

( 4a^2 - 9b^2)^2 - 25a^2b^2

( 4a^2 - 9b^2 + 5ab) ( 4a^2 -9b^2 -5ab)